Fresh masa & a tortilla press (or a large mason jar and two clear plastic bags) are the backbone of delicious vegan and non-vegan tacos.
A note: real masa used to make tortillas is vegan and does not contain lard. Masa sold as "for tamales" will have lard mixed in and is not vegan. Consequently, tortillas are vegan and (most) tamales are not, but Tina Tamale makes vegan tamales!
Fresh masa is easy to come by in East Oakland, but can be a bit more hard to find in other parts of Oakland.
Here are places to get fresh masa in Oakland: