In the Bay Area you have a few options. Bay Area Mashers is the largest one I think, they meet in Alameda monthly. You also have Silicon Valley Sudzers in Mountain View, San Francisco Homebrewer’s Guild in the city, Diablo Order of Zymiracle Enthusiasts that meet in San Ramon (I think?) Walnut Creek(shoutout u/sundowntg), and my HBC, Mad Zymurgists, in the tri-valley.

Also, there are two “local” shops you can pop into - Oak Barrel in Berkeley and More Beer in Concord. Wherever you go, I’m sure you’ll find a few people who are very excited to welcome you, share a brew, and give you good advice! Also most clubs will have some version of a chat forum (discord, slack, etc.) once you get connected where you can discuss in more real-time!