Ninja
Foodi Dual Zone Series
Dual zones for smart cooking, but baskets are small.

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I have it, it's great and can be set to 450F where most top out at 400F, so a little more flexible. The basket is sized so that the pre-cut aluminum foil squares at Costco line it perfectly so that a great many foods can be cooked without needing to clean the basket itself that way. Downside is the alarm tone is very soft so you're not going to hear it across the house. I also have a dual basket Ninja which I thought would be useful but actually doesn't cook faster because in split mode the heating element is split between the zones, slowing both. The only air fryer that feels like an upgrade to me at this point is the Typhur Dome 2, and that simply because the basket is so very very wide. But I no longer need to cook batches large enough to justify that.
I just bought a 8qt gourmia with a see through window for $39 on a Walmart Black Friday deal. Seems good so far.
https://preview.redd.it/8fo4qqd4lwhg1.jpeg?width=3060&format=pjpg&auto=webp&s=ff91cc1e12c1296acc0f3bc3ea8dbd148b62d7c9 Ours didn't last but 3 months. We loved it and used it everyday. In the image above, it had the wires over heat and caused a plastic burning smell. It would not power on after that. We returned it and have not found a suitable replacement.
I think it's pretty average and a good deal at the price. The window gets dirty and I can't get it clean. Sometimes putting the drawer back in on the slots correctly takes more than one try. But it works well and has a good amount of features and mine has lasted about a year so far, no indication of it failing. It's a good deal and probably not the best air fryer, but unless you really want to study air frying techniques, it gets the job done and is pretty big for the price.
If you have a Costco membership, keep an eye out for the Gourmia 8-Quart Digital Air Fryer, wait for it to go on sale, I got mine for $45 or $50, I'd give it a 9/10.
I got a Gourmia 8 quart on sale from Walmart for $35. Works great and was cheap.
Ninja
Foodi Dual Zone Series
Dual zones for smart cooking, but baskets are small.

COSORI
Turbo Blaze 9-in-1 6QT
Quiet, easy to clean, but lacks a viewing window.

Ninja
Foodi Air Fry Oven Series
Flips up to save space, but shallow and air fries poorly.

Breville
Smart Oven Air Fryer Series
Oven replacement; spacious, but air frying and cleaning divide users.

Typhur
Dome
Self-cleaning and quiet, but expensive with shallow interior.

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Ninja - Crispi Pro 6-in-1 Countertop Glass Air Fryer

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Breville - Smart Oven Air Fryer Series

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COSORI - Turbo Blaze 9-in-1 6QT

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Ninja - Crispi Pro 6-in-1 Countertop Glass Air Fryer

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Ninja - Foodi Air Fry Oven Series