Pat chicken strips dry with paper towels.
Whisk eggs and milk together in a shallow bowl.
In another bowl, combine crushed tortilla chips, panko breadcrumbs, taco seasoning, smoked paprika, garlic powder, onion powder, salt, and black pepper.
Dip each chicken strip into the egg mixture, then press firmly into the tortilla crumb mixture ensuring full coverage.
Choose a cooking method: For oven, preheat to 425°F, line baking sheet with parchment, lightly spray with oil, arrange chicken strips, spray tops with cooking spray, bake 18–22 minutes flipping halfway.
For air fryer, preheat to 400°F, arrange chicken fingers in single layer, air fry 10–12 minutes flipping halfway.
For frying, heat oil to 350°F in a deep skillet, fry chicken fingers in batches 3–4 minutes per side until golden and crispy, drain on paper towels.
Serve hot with optional ranch, chipotle mayo, salsa, shredded lettuce, and lime wedges.