I have the Breville Smart Oven, and I love it. It's an air fryer, toaster oven, convection oven, and dehydrator, all in one unit. I use it practically daily for toasting things (including making nachos in about 5 minutes), have made beef jerky in it, and roasted a whole chicken, not to mention all of the air frying I've done.

It's a bit pricey, it's well worth it, considering how many devices it replaces.