Bread...? Tartine, Acme, Semifreddi’s are all fantastic and highly available in SF. The Bay Area, kicked off by Chez Panisse unsurprisingly, has developed a great bread culture
If you like Tartine, you’ll probably like “the midwife and the baker”. For me, it’s a close call between the two (depends on the specific variety). You can get their stuff at some stores/farmers markets and the bakery itself in Mountain View (no storefront yet).
Manresa is good too. But I find something missing from them vs the other two bakeries (nitpicking here though).
Tartine's bread is good. Their ham and cheese croissant is next level by far the best savoury baked good I have had between Europe and North America. Every time I go back to have it I question if it can live up to my expectations. Every time it knocks them out of the park. I am already doubting that it will be that good when I go back to get it again...