There’s 50+ smaller breweries sprinkled across the North Bay within 1.5hrs of SF. Civilization, Fog Belt, Cooperage, Iron Ox, Henhouse, Barrel Brothers, Moonlight, Shadyoak… just to name a few.
The comically small town of Winters has two - Berryessa Brewing and Hoobies. Both great. Closer to Dixon/Davis, Ruhstaller is a blast - especially on weekends.