Drain the salmon thoroughly, remove skin and large bones if desired and flake it into a bowl.
Whisk egg, mayonnaise, Dijon, lemon, seasonings, green onions and herbs. Fold into the salmon with 3/4 cup panko.
Rest for 10 minutes, adjust only if needed, then shape eight 1/2-inch patties and coat them with the remaining panko.
Preheat the air fryer to 390°F if recommended. Oil the basket and patties lightly.
Arrange four patties in one layer and cook for 5 minutes.
Turn gently and cook for 4 to 6 minutes longer, until crisp and at least 160°F in the center.
Rest for 2 minutes and serve with lemon and desired sauce.