Make the mango salsa: In a bowl, combine mango, red onion, jalapeño, cilantro, 2.0 tbsp lime juice, and 0.25 tsp salt. Toss and let sit while you prep the shrimp.
Make the lime crema: In a small bowl whisk sour cream, mayonnaise, hot sauce, and lime zest. If needed, thin with a splash of water to drizzle.
Season the shrimp: Pat shrimp dry, then toss with chili powder, cumin, smoked paprika, garlic powder, cayenne, 0.75 tsp kosher salt, 0.25 tsp black pepper, and 1.0 tbsp lime juice.
Cook the shrimp: Heat olive oil in a large skillet over medium-high. Add shrimp in a single layer and cook 1.5 to 2.0 minutes per side until just opaque and lightly charred. Remove from heat.
Warm the tortillas: Char or warm tortillas in a dry skillet 20 to 30 seconds per side; keep wrapped in a clean towel.
Assemble: Layer cabbage in tortillas, add shrimp, spoon on mango salsa, and drizzle with lime crema.
Serve: Garnish with extra cilantro and lime wedges. Enjoy immediately.
Notes
For extra heat, add a pinch of cayenne to the crema. Flour tortillas work too—warm them gently to prevent tearing.