La Biznaga since they had Cucapá on their menu. On my visit, they had beers by Tempus, Hidalgo (Catrina Red Ale and the Stout), Calavera (the Pale Ale and the Mexican Imperial Stout), and Minerva. They also have a small selection of imported beers from Europe.
El Olivo is located at Francisco Murguía 218, near Reforma. The linked map doesn't seem exactly accurate, but you'll see the intersection close by. You can also follow them on twitter.