These eighteen subreddits are not advertising inventory. They are a candidate research pool that must be validated one by one. Names, activity and rules can change, so review current rules, pinned posts and recent discussions before participating. The key question is not which community is largest, but where relevant buyers discuss problems your product can genuinely help solve.
Indie building and product feedback
- r/SideProject: build journeys, project reviews and early feedback
- r/IMadeThis: completed products and tools
- r/micro_saas: micro-SaaS and small-product discussions
- r/microsaas: micro-SaaS operations
- r/indiehackers: indie products and growth; verify current activity and rules before use
Startups and company building
- r/startups: products, growth, funding and operations
- r/Entrepreneur: business models and founder experience
- r/founder: company-building from a founder perspective
- r/juststart: building websites, content and online businesses from zero
SaaS and marketing
- r/SaaSMarketing: SaaS acquisition, content, SEO and conversion
- r/marketing: broader marketing strategy and professional discussion
AI and AI-assisted development
- r/ClaudeAI: Claude use cases, workflows and related products
- r/vibecoding: AI-assisted development, prototypes and rapid building
Apps and the Apple ecosystem
- r/apps: app discovery, product experience and feedback
- r/appledevelopers: Apple-platform development
- r/iOSAppsMarketing: iOS app acquisition and growth
- r/macapps: Mac applications and user needs
Side businesses and online income
r/passive_income covers side businesses, digital products and online income, but commercial promotion may be especially sensitive. Study evidence expectations, discussion quality and self-promotion rules first.
A four-step selection method
- Build candidates from product, problem and alternative terms
- Sample recent discussions to assess activity and buyer stage
- Record rules for links, promotion, research, AMAs and accounts
- Validate expertise through useful comments before proposing a native post
Participation boundaries
Do not copy one post across eighteen communities, impersonate users, coordinate support through multiple accounts or treat karma as a promotion licence. Disclose relevant relationships, solve the problem first, respect moderator decisions and treat removals as feedback on rules or fit. WEPR structures Reddit work around research, question mapping, human participation and risk records.
Are all 18 communities suitable for product promotion?
No. The list is a research starting point. Rules, audience expectations and commercial-content policies must be checked for each subreddit.
Should teams prioritise large or niche subreddits?
Prioritise audience fit, problem density, discussion quality and rule compatibility—not member count alone.
How long should a new account wait before participating?
There is no universal number of days. Build a normal history of reading and useful participation, then test gradually within each community's rules.
Source：Reddit Rules
Source：Reddit Help: Spam