For shrimp tacos, they're best paired with a sauce, like the Lime Crema in this recipe, or a coleslaw. These particular tacos don't have coleslaw but chopped kimchi would provide the same tang and crunch. Other common toppings are cheese (cotija or queso fresco), salsa, pico de gallo, avocado or guacamole, chopped onion or tomatoes, cilantro, and green onion.