r/SaaS
- members
- 1.1M
- weekly activity
- 98K
Subreddit guides
Learn what each subreddit is for before you post there.
Rankhog's subreddit pages combine current public Reddit data, rule summaries, practical posting guidance, and the standards you need before publishing in a specific community.
r/startups
- members
- 3.5M
- weekly activity
- 210K
r/Entrepreneur
- members
- 4.2M
- active now
- live
r/ProductManagement
- members
- 280K
- weekly activity
- 25K
r/indiehackers
- members
- 160K
- weekly activity
- 11K
r/SideProject
- members
- 1.4M
- weekly activity
- 74K
r/smallbusiness
- members
- 1.9M
- active now
- live
r/marketing
- members
- 910K
- weekly activity
- 41K
Individual subreddit guides
Use these when you already have a target subreddit and need the rules, stats, and posting standard before drafting. 716 guides and counting; new communities get theirs automatically.
Showing 60 of the 60 guides on this page.
r/AskReddit
Cultural Q&A and regional perspective communities
A source-backed Rankhog guide to r/AskReddit: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 59.7M
- Verified
- 2026-09-28
r/todayilearned
General knowledge and trivia readers
A source-backed Rankhog guide to r/todayilearned: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 41.7M
- Verified
- 2026-09-28
r/movies
Hobby and enthusiast communities
A source-backed Rankhog guide to r/movies: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 37.7M
- Verified
- 2026-09-18
r/science
Science and research communities
A source-backed Rankhog guide to r/science: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 34.6M
- Verified
- 2026-09-29
r/news
Digital marketing practitioners
A source-backed Rankhog guide to r/news: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 31.5M
- Verified
- 2026-09-18
r/space
Science and space communities
A source-backed Rankhog guide to r/space: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 28M
- Verified
- 2026-09-29
r/videos
Fan and entertainment communities
A source-backed Rankhog guide to r/videos: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 26.9M
- Verified
- 2026-09-26
r/GetMotivated
Entrepreneur advice and questions
A source-backed Rankhog guide to r/GetMotivated: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 24.1M
- Verified
- 2026-09-27
r/explainlikeimfive
Entrepreneur advice and questions
A source-backed Rankhog guide to r/explainlikeimfive: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 23.7M
- Verified
- 2026-09-22
r/personalfinance
Personal finance and investing communities
A source-backed Rankhog guide to r/personalfinance: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 21.9M
- Verified
- 2026-10-04
r/Futurology
Science and research communities
A source-backed Rankhog guide to r/Futurology: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 21.7M
- Verified
- 2026-09-30
r/technology
Technical product and developer communities
A source-backed Rankhog guide to r/technology: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 20.5M
- Verified
- 2026-09-18
r/InternetIsBeautiful
Side project builders and makers
A source-backed Rankhog guide to r/InternetIsBeautiful: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 16.6M
- Verified
- 2026-09-29
r/travel
Travel and rental car communities
A source-backed Rankhog guide to r/travel: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 14.5M
- Verified
- 2026-09-18
r/ChatGPT
AI builders, operators, and researchers
A source-backed Rankhog guide to r/ChatGPT: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 11.6M
- Verified
- 2026-09-18
r/CryptoCurrency
Startup founders and entrepreneurs
A source-backed Rankhog guide to r/CryptoCurrency: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 10.2M
- Verified
- 2026-09-18
r/stocks
Entrepreneur advice and questions
A source-backed Rankhog guide to r/stocks: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 9.4M
- Verified
- 2026-09-18
r/leagueoflegends
Fan and entertainment communities
A source-backed Rankhog guide to r/leagueoflegends: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 8.5M
- Verified
- 2026-09-27
r/Parenting
Health and fitness communities
A source-backed Rankhog guide to r/Parenting: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 8.3M
- Verified
- 2026-09-15
r/Bitcoin
Digital marketing practitioners
A source-backed Rankhog guide to r/Bitcoin: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 8.2M
- Verified
- 2026-09-18
r/NoStupidQuestions
Entrepreneur advice and questions
A source-backed Rankhog guide to r/NoStupidQuestions: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 7.5M
- Verified
- 2026-09-18
r/programming
Technical product and developer communities
A source-backed Rankhog guide to r/programming: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 6.9M
- Verified
- 2026-09-18
r/Frugal
Personal finance and investing communities
A source-backed Rankhog guide to r/Frugal: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 6.9M
- Verified
- 2026-09-18
r/malefashionadvice
Hobby and enthusiast communities
A source-backed Rankhog guide to r/malefashionadvice: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 6.5M
- Verified
- 2026-09-27
r/apple
Technical product and developer communities
A source-backed Rankhog guide to r/apple: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 6.5M
- Verified
- 2026-09-24
r/MapPorn
Surveying, mapping, and 3D capture
A source-backed Rankhog guide to r/MapPorn: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 6.4M
- Verified
- 2026-10-10
r/nutrition
Science and research communities
A source-backed Rankhog guide to r/nutrition: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 5.9M
- Verified
- 2026-09-18
r/femalefashionadvice
Hobby and enthusiast communities
A source-backed Rankhog guide to r/femalefashionadvice: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 5.8M
- Verified
- 2026-09-27
r/TravelHacks
Travel and rental car communities
A source-backed Rankhog guide to r/TravelHacks: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 5.8M
- Verified
- 2026-10-10
r/unitedkingdom
Cultural Q&A and regional perspective communities
A source-backed Rankhog guide to r/unitedkingdom: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 5.6M
- Verified
- 2026-09-30
r/biology
Science and research communities
A source-backed Rankhog guide to r/biology: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 5.5M
- Verified
- 2026-09-18
r/Entrepreneur
Startup founders and entrepreneurs
A source-backed Rankhog guide to r/Entrepreneur: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 5.3M
- Verified
- 2026-09-29
r/Shoestring
Travel and rental car communities
A source-backed Rankhog guide to r/Shoestring: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 5.2M
- Verified
- 2026-10-10
r/Daytrading
Entrepreneur advice and questions
A source-backed Rankhog guide to r/Daytrading: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 5.2M
- Verified
- 2026-09-18
r/careerguidance
Entrepreneur advice and questions
A source-backed Rankhog guide to r/careerguidance: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 5M
- Verified
- 2026-09-18
r/HomeImprovement
Homeowner and construction communities
A source-backed Rankhog guide to r/HomeImprovement: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 4.8M
- Verified
- 2026-09-29
r/ProgrammerHumor
Technical product and developer communities
A source-backed Rankhog guide to r/ProgrammerHumor: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 4.8M
- Verified
- 2026-10-12
r/solotravel
Travel and rental car communities
A source-backed Rankhog guide to r/solotravel: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 4.6M
- Verified
- 2026-10-10
r/Design
Marketing and growth communities
A source-backed Rankhog guide to r/Design: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 4.5M
- Verified
- 2026-09-18
r/learnprogramming
Technical product and developer communities
A source-backed Rankhog guide to r/learnprogramming: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 4.4M
- Verified
- 2026-09-18
r/productivity
Entrepreneur advice and questions
A source-backed Rankhog guide to r/productivity: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 4.2M
- Verified
- 2026-09-18
r/roadtrip
Travel and rental car communities
A source-backed Rankhog guide to r/roadtrip: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 4.2M
- Verified
- 2026-10-10
r/loseit
Health and fitness communities
A source-backed Rankhog guide to r/loseit: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 4.2M
- Verified
- 2026-09-18
r/StockMarket
Personal finance and investing communities
A source-backed Rankhog guide to r/StockMarket: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 4.1M
- Verified
- 2026-10-13
r/singularity
AI builders, operators, and researchers
A source-backed Rankhog guide to r/singularity: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 4M
- Verified
- 2026-09-18
r/BuyItForLife
Ecommerce founders and operators
A source-backed Rankhog guide to r/BuyItForLife: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 4M
- Verified
- 2026-09-18
r/ethereum
Technical product and developer communities
A source-backed Rankhog guide to r/ethereum: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 3.7M
- Verified
- 2026-09-18
r/homestead
Hobby and enthusiast communities
A source-backed Rankhog guide to r/homestead: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 3.5M
- Verified
- 2026-09-18
r/google
Digital marketing practitioners
A source-backed Rankhog guide to r/google: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 3.5M
- Verified
- 2026-09-18
r/investing
Personal finance and investing communities
A source-backed Rankhog guide to r/investing: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 3.5M
- Verified
- 2026-09-27
r/techsupport
Technical product and developer communities
A source-backed Rankhog guide to r/techsupport: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 3.4M
- Verified
- 2026-09-21
r/languagelearning
Bootstrapped SaaS founders and solo software builders
A source-backed Rankhog guide to r/languagelearning: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 3.4M
- Verified
- 2026-09-18
r/sidehustle
Side hustle builders and solo income experiments
A source-backed Rankhog guide to r/sidehustle: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 3.3M
- Verified
- 2026-09-29
r/webdev
Technical product and developer communities
A source-backed Rankhog guide to r/webdev: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 3.3M
- Verified
- 2026-09-29
r/de
Local community and city subreddits
A source-backed Rankhog guide to r/de: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 3.2M
- Verified
- 2026-09-18
r/Advice
Everyday life tips and practical advice communities
A source-backed Rankhog guide to r/Advice: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 3.2M
- Verified
- 2026-09-24
r/xxfitness
Health and fitness communities
A source-backed Rankhog guide to r/xxfitness: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 3.1M
- Verified
- 2026-09-18
r/homeowners
Homeowner and construction communities
A source-backed Rankhog guide to r/homeowners: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 3.1M
- Verified
- 2026-10-03
r/MachineLearning
AI builders, operators, and researchers
A source-backed Rankhog guide to r/MachineLearning: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 3.1M
- Verified
- 2026-09-18
r/mac
Technical product and developer communities
A source-backed Rankhog guide to r/mac: public rules, community context, posting fit, and startup-promotion risk before you publish.
- Members
- 3.1M
- Verified
- 2026-09-18