Rinse fish with cool water and pat to dry. Season char with salt, black pepper, paprika, and coriander. In a small bowl combine garlic, ginger, lime juice, lime zest, extra virgin olive oil, thyme, and cilantro. Pour mixture over seasoned fish and marinate for an hour. Lay seasoned fish skin side down in air fryer topped with sliced lime and softened butter. Broil at 400˚F for 12 min.