Toss wings in buttermilk and 1/4 cup ranch; chill 20–30 minutes to loosen skin and add flavor.
Mix panko, flour, garlic, onion, paprika, salt, and pepper in a shallow bowl.
Drain wings briefly, dredge in crumb mix, pressing to coat. Lightly spray or toss with olive oil.
Arrange in a single layer in the air fryer basket; cook at 400°F (200°C) for 22–25 minutes, flipping once, until golden and internal temp is 165°F.
Stir remaining ranch with 2 tbsp sour cream, 1 tbsp chopped dill, and 1 tbsp chopped chives for the dip. Chill briefly before serving.