There are a couple on Medium actually:

1. YIMBY Action
2. YIMBY Neoliberal
3. SF YIMBY
4. Tech Yimby
5. Folks that might match what you’re looking for: Steven Buss

Specifically:

• SF YIMBY: How to vote pro-housing in San Francisco this November
• Steven Buss: Software was eating the world — now landlords are eating everything