Prepare the Bang Bang Sauce: In a small bowl, mix together the mayonnaise, sweet chili sauce, sriracha, and lime juice. Adjust the spiciness to your preference. Set aside.
Prepare the Shrimp: In a medium bowl, whisk together the flour, cornstarch, paprika, garlic powder, salt, and black pepper.
Dip each shrimp into the buttermilk, letting the excess drip off, then dredge the shrimp in the flour mixture until coated evenly.
Heat the Oil: In a large skillet, heat about 1 inch of vegetable oil over medium-high heat until it's shimmering (about 350°F).
Fry the Shrimp: Working in batches, carefully add the shrimp to the hot oil, frying until golden brown and crispy, about 2-3 minutes per side. Use a slotted spoon to transfer the shrimp to a plate lined with paper towels to drain off excess oil.
Assemble the Tacos: Warm the corn tortillas in a skillet or microwave until pliable. Top each tortilla with a few shrimp, a drizzle of Bang Bang sauce, and your choice of toppings (shredded cabbage, jalapeños, and cilantro).
Serve: Add lime wedges on the side for an extra zesty kick.
Notes
Adjust the spiciness of the sauce according to your preference.