Nixta Taqueria
Veracruz All Natural
Valentina’s Tex Mex BBQ
Cuantos Tacos
Discada
Asador
Palo Seco
Granny’s Tacos
Ensenada
El Primo
Texsueño
Santa Barbacha
Tacodeli
Pueblo Viejo
Tamale House East
Torchy’s
For me it's the local gas station. Those ladies make great tacos.
If you're in North Austin, Taqueria Los Regios has the best Al Pastor tacos in Austin, IMO. They're the yellow food truck in the parking lot of the Sunoco located off of Braker Ln.
Paprika ATX right near the Michi Ramen in North Lamar is also excellent, I highly recommend them.