Paul Kantner of the Jefferson Airplane (and Jefferson Starship, of course) lived in an apartment at the corner of Grant Avenue and Vallejo Street above Al's Attire until his death in 2016, and was often seen in Caffe Trieste nearby.
Use the button below to get directions there, and then pick one of the nearby locations from the list at the bottom of the page. If none of them strike your fancy try changing the drop-down to "All Locations".