Someone told me that Humphry Slocombe Ice Cream in San Francisco is very good but never tried it. Looks like it might be turning into another Haagen-Dazs or McConnel's which is based in Santa Barbara - very rich but over-hyped. Grew up on Breyer's, then Dreyer's and Swensen's in the bay area - Fenton's in Piedmont/Oakland was good too. Nothing like really good gelato though!
Everybody has their ice cream favorites:
https://www.foodandwine.com/travel/best-ice-cream-every-state
