Finally I have found a place in the El Cerrito Del Norte/Richmond district that is a taqueria at least close to on par with some of the places I like in the mission like Cancun and Farolito.
It has lower volume, so not quite as well-oiled a machine as those, but they have aguas frescas, good tacos and sopes. I do recommend all the basic fare over the combo meal platters that they offer.
Tortas Y Taqueria Los Picudos, Richmond
13830 San Pablo Ave # I
San Pablo, CA 94806