1.) r/startups – 2.4M members

The mothership. The go-to place for startup advice and founder stories.

2.) r/Entrepreneur – 2.3M members

Broader than startups, but gold for bootstrappers and side-hustlers.

3.) r/SaaS – 122K members

All about building and scaling software businesses.

4.) r/indiehackers – 94K members

For founders who value small, profitable, and independent.

5.) r/MicroSaas – 52K members

For builders with minimal resources and laser-sharp ideas.

6.) r/smallbusiness – 735K members

More traditional, but grounding. Sometimes startup land needs a reality check.

7.) r/ycombinator – 46K members

Inside baseball on YC startups, advice, and culture.