If you like salmon then try it in there. Best salmon ever. My wife buys salmon fillets in a big bag from costco and i put a little vegatable oil on em and then some garlic salt, pepper, and paprika (paprika is the key). 9-10 minutes in the air fryer and they are perfect. (have to spray a good amount of non stick stuff in the air fryer basket first)
I also love brussel sprouts in the air fyer, baked potatoes are fantastic and steaks are amazing. This sounds crazy but I prefer steaks cooked in the air fryer over the grill. Burgers are great in the air fryer too.
Then of course you have the usual stuff: Jalepeno poppers, chicken nuggets/strips/patties, french fries etc. Funny thing is that I think french fries are the thing I like least in the air fryer.