Best Discussion Subreddits
Discussion communities are the part of Reddit where the comments matter more than the post. A single question on r/AskReddit can collect thousands of answers, and that format has been copied across the whole site.
The category splits into a few clear groups. Question hubs (AskReddit, NoStupidQuestions, AskMen, AskWomen) run on open prompts. Story and confession subs (tifu, confession, offmychest) are built around personal posts. Then there are idea and fact subs like todayilearned and Showerthoughts, plus practical ones for advice and social skills.
The 15 communities below cover each of these groups, so you can pick by the kind of conversation you actually want.
At a glance
This list covers 15 communities with a combined 245,741,055 members. The largest is r/AskReddit (59,202,832), the smallest r/Advice (3,024,882). 15 of 15 are work-safe. Subscriber counts come from the public Reddit API and were refreshed on 2026-10-24; the full category has 6,870 communities.
| Subreddit | Members | Rating |
|---|---|---|
| r/AskReddit | 59,202,832 | SFW |
| r/todayilearned | 41,544,048 | SFW |
| r/Showerthoughts | 34,166,976 | SFW |
| r/IAmA | 22,467,393 | SFW |
| r/tifu | 18,944,783 | SFW |
| r/NoStupidQuestions | 7,359,146 | SFW |
| r/TwoXChromosomes | 13,705,631 | SFW |
| r/AskMen | 7,323,405 | SFW |
| r/AskWomen | 5,725,814 | SFW |
| r/confession | 11,904,253 | SFW |
| r/offmychest | 3,453,657 | SFW |
| r/unpopularopinion | 4,949,376 | SFW |
| r/YouShouldKnow | 5,614,782 | SFW |
| r/socialskills | 6,354,077 | SFW |
| r/Advice | 3,024,882 | SFW |
The biggest open-question forum on Reddit: someone asks something, everyone else answers in the comments. Good for casual reading and for seeing how widely people's experiences differ.
Users share facts they just learned, each with a source link. A steady feed of surprising history, science and trivia for anyone who likes learning in small pieces.
Short observations that sound obvious but nobody says out loud. Light reading for when you want a laugh or a fresh angle on everyday things.
The home of Reddit AMAs, where people with unusual jobs or experiences answer questions from the community. Worth following if you like long, direct Q&A threads.
Short for Today I F***ed Up: people describe their own embarrassing mistakes in detail. Ideal for comic relief and the comfort of knowing others mess up too.
A place to ask the basic questions you might hesitate to ask elsewhere, from science to etiquette. Answers tend to be patient, which makes it friendly for newcomers.
A large community for women's perspectives, covering both serious topics and lighter conversation. Suits readers who want discussion centred on women's lived experiences.
A forum where men discuss their experiences and anyone can ask men questions. Useful for honest answers about relationships, work and everyday life.
The counterpart to AskMen: questions directed at women, answered by women. Good for thoughtful, first-person replies on a wide range of topics.
A space to admit things you've done wrong and get them off your chest anonymously. Readers come for candid stories, posters for a way to own up.
A supportive community for sharing emotional things you can't tell people in your life. Suits anyone who needs to vent and get a kind response.
For hot takes and opinions that go against the grain. Expect lively, sometimes heated debate in the comments.
Practical tips and little-known facts that can help in daily life, from money to safety. A good subscription if you like advice you can use straight away.
Discussion and advice on communication, confidence and getting along with people. Helpful for anyone who feels awkward in conversation and wants concrete pointers.
A general advice board where you can describe a situation and ask for input on almost any subject. Handy when you want outside opinions on a real decision.
We picked these subreddits from the Communities & Discussion category by size, an active description and a clear focus. The full category lists thousands more, from small hobby forums to city-level discussion boards.