I really enjoy using corn tortillas for tacos because they have great flavor and are naturally gluten-free. You can also use a flour tortilla for tacos (which tend to be softer than corn). If you do, I recommend using a whole wheat or sprouted wheat flour tortilla for added fiber and whole grains. You can also try a corn + wheat flour tortilla for the best of both worlds! Black bean vegetarian tacos taste great no matter what!