47 rooms, 11 business types
Advice to “go where your customers are” skips the part that gets people removed. Of the 26 communities here with an access read, 11 let you post freely and 15 do not, so more than half of the rooms a founder is usually pointed at are not open to the post they were planning. In 13 of those 15, commenting is wide open. The door is almost always there, just not the one people walk at.
Read on 18 August 2026. Rooms change their rules, so check before you post.
rooms in total, 26 of them communities with an access read
where posting is open
where posting is conditional
where commenting is the way in
How this was made, and what it is not
Each room came out of a real customer-finding read for one of 11 business types, with the web searched and every link checked live. The access values are model inferences, not verified rules. Nothing here reads a community’s rulebook through an API, quotes a rule, or names a karma threshold, because a made-up threshold reads as fact and this is not an audit. Where two business types disagreed about a room, the stricter read is shown (none did). Treat it as a well-informed starting point that saves you an hour of sidebar reading, not as permission.
| Room | Door | Named for | |
|---|---|---|---|
| Indie Hackers community forumcommunity | Post freely | SaaSDeveloper toolMobile appOnline coursePaid communityFreelance developer | Open → |
| r/Entrepreneurcommunity | Comment first | SaaSPaid communityEcommerce store | Open → |
| LinkedIn direct outreach to professionals with your target job titlecompany | Post freely | Paid communityFreelance developer | Open → |
| r/forhire (655k members, active [For Hire] board for designers and developers)community | Post freely | Web design agencyFreelance developer | Open → |
| r/SideProjectcommunity | Post freely | Mobile appEcommerce store | Open → |
| r/smallbusinesscommunity | Comment first | SaaSWeb design agency | Open → |
| Advanced WordPress Facebook Groupcommunity | Read only | WordPress plugin | Open → |
| Apollo.io free prospecting searchdirectory | No read | SaaS | Open → |
| BetaListdirectory | No read | Mobile app | Open → |
| Capterra small business software categorymarketplace | No read | SaaS | Open → |
| Clutch.co web designers for small business directorydirectory | No read | Web design agency | Open → |
| DevOps Engineers Slack community (devopsengineers.com)community | No read | Developer tool | Open → |
| eCommTalk Slack communitycommunity | No read | Shopify app | Open → |
| Facebook niche buy-and-sell groups for your product categorycommunity | Comment first | Ecommerce store | Open → |
| Freemius Seller Community and Blogcommunity | No read | WordPress plugin | Open → |
| Gumroad marketplace - browse the skill category to see what similar courses sell for and who is buyingmarketplace | No read | Online course | Open → |
| Hacker News Show HN (news.ycombinator.com/show)community | Post freely | Developer tool | Open → |
| Hive Index community directory (submit your community listing)directory | No read | Paid community | Open → |
| LinkedIn - direct messages to 20 to 30 first-degree connections who match the buyer profilecompany | No read | Online course | Open → |
| Memberful pricing and founding member launch guidedirectory | No read | Newsletter | Open → |
| Newsletter Circle (newslettercircle.substack.com) community of 5700+ newsletter operatorscommunity | Comment first | Newsletter | Open → |
| Niche subject forums, Discord servers, or Facebook groups specific to your topic (find via Disboard.org for Discord, or Facebook group search for your subject keyword)community | No read | Newsletter | Open → |
| Product Hunt upcoming pagemarketplace | No read | Mobile app | Open → |
| r/AlphaAndBetaUserscommunity | Post freely | Mobile app | Open → |
| r/careerguidance (1.5M members) - active threads asking 'what course/resource helped you actually get promoted?'community | Comment first | Online course | Open → |
| r/cscareerquestions (966K members) - if the skill is technical or career-adjacentcommunity | Comment first | Online course | Open → |
| r/devops (reddit.com/r/devops)community | Comment first | Developer tool | Open → |
| r/IMadeThis, subreddit for creators sharing physical and digital things they madecommunity | Post freely | Ecommerce store | Open → |
| r/indiehackers on Reddit (100k+ members, tactical threads on first users and launches)community | Comment first | Paid community | Open → |
| r/iOSAppscommunity | Comment first | Mobile app | Open → |
| r/newsletters on Redditcommunity | Comment first | Newsletter | Open → |
| r/SaaS (reddit.com/r/SaaS)community | Read only | Developer tool | Open → |
| r/shopifycommunity | Comment first | Shopify app | Open → |
| r/startups, founders discussing technical hiring paincommunity | Comment first | Freelance developer | Open → |
| r/webdev Showoff Saturday megathread (reddit.com/r/webdev)community | Comment first | Developer tool | Open → |
| r/WordPress on Redditcommunity | Post freely | WordPress plugin | Open → |
| Shopify App Store, your own listing pagemarketplace | No read | Shopify app | Open → |
| Shopify Community Forum, Discussions boardcommunity | Post freely | Shopify app | Open → |
| Shopify Partner Program, 'New and Noteworthy' and Featured sectionsdirectory | No read | Shopify app | Open → |
| Skool marketplace (skool.com/discovery)marketplace | No read | Paid community | Open → |
| Substack Notes feed (substack.com/notes)community | Post freely | Newsletter | Open → |
| Substack Recommendations network (substack.com/growthfeatures)marketplace | No read | Newsletter | Open → |
| Toptal, vetted freelance developer marketplace used by startupsmarketplace | No read | Freelance developer | Open → |
| Udemy marketplace - browse the category for your skill to see what's selling and at what pricemarketplace | No read | Online course | Open → |
| WordCamp US 2026 (Phoenix, August 16-19)community | No read | WordPress plugin | Open → |
| WordPress Developer Blog (developer.wordpress.org/news)directory | No read | WordPress plugin | Open → |
| WordPress.org Plugin Support Forumscommunity | Post freely | WordPress plugin | Open → |
The rooms are not the problem. The move is. A founder who writes one post and drops it into 15 rooms where posting is conditional will be removed from most of them and may lose the account. The same founder, answering existing threads in the same rooms, is inside the rules in 13 of them.
This is why every room in the per-business-type reads carries its own door alongside the reason your buyer is there. Naming the room without naming the door is the advice that gets people banned.
Using this
Quote any number or row of it, including in a piece that disagrees with us, as long as you link back to this page so a reader can see the method and the date. If a room’s door has changed, or we have one wrong, tell us at hello@kasspian.com and it gets fixed on the next read.
This is every room across 11 business types. Yours is narrower. Describe it and get the rooms that fit, each with its door and what to say there.