Prepare the haddock: Pat the haddock fillets dry with paper towels to remove any excess moisture. This helps the breading stick better and results in a crispier finish.

1. Season the fillets: In a small bowl, combine the garlic powder, onion powder, paprika, salt, and pepper. Rub this seasoning mix evenly over both sides of the haddock fillets.
2. Coat the fish: In a shallow bowl, add the breadcrumbs. Lightly brush both sides of the fillets with olive oil or melted butter, then dip each fillet into the breadcrumbs, pressing gently to ensure they are fully coated. For extra crispiness, you can double coat the fillets by repeating this step.
3. Preheat the air fryer: Preheat your air fryer to 400°F (200°C) for about 5 minutes.
4. Air fry the haddock: Place the breaded haddock fillets in the air fryer basket, making sure they are not overlapping. Air fry at 400°F (200°C) for 10-12 minutes, or until the fillets are golden brown and crispy on the outside, and the internal temperature reaches 145°F (63°C). You can flip the fillets halfway through cooking to ensure they cook evenly.
5. Serve: Once the haddock is done, remove it from the air fryer and drizzle with lemon juice. Garnish with fresh parsley, if desired. Serve immediately with your favorite sides like roasted vegetables, rice, or a simple salad.