Combine the shrimp with all the ingredients, except the tortillas. Marinate for 4-6 hours.
Grill the shrimp over medium heat using a grill basket, tossing occasionally until the shrimp are just turning pink. About 5 -7 minutes.
Use a Smoke Gun (or cloche) if available or desired.
Soften the tortillas over low heat and place on serving plates. Divide the shrimp between the tortillas.
Top with pickled onions and avocado (or whatever toppings you enjoy).
Drizzle with Ranch Dressing or the sauce of your choice and serve.