Preheat the air fryer to 375°F (190°C).
Mix the almond flour, panko, garlic powder, onion powder, paprika, salt and pepper in a shallow bowl.
Dip the chicken in the egg, then roll it in the coating. Press sliced almonds firmly onto each piece.
Arrange the chicken in a single layer, mist it with oil, and air fry for 10 to 12 minutes, flipping halfway, until it reaches 165°F.
Meanwhile, simmer the broth, soy sauce, oyster sauce and sugar. Stir in the cornstarch slurry and cook for 1 to 2 minutes until thickened. Remove from the heat and stir in the sesame oil.
Spoon the gravy over the chicken or serve it on the side. Garnish with green onions and toasted almonds.