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

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I was looking at this one too, the design really looks ideal, but the heat comes from behind, which I didn't like. Fist off is to ask yourself if you really require dual basket or not. If not I'd suggest a 6qt basket design like the Instant Pot Vortex 6qt with Odor Ease, this is hands down the best designed, most feature packed air fryer right now at that size and price point. They have a dual basket model as well. If you prefer a ceramic fryer, check out the Corsori TurboBlaze. It lacks some features compared to the Vortex, but is also excellent. I have tried Ninja air fryers before and was not impressed with the features and build quality.
Just bought this to replace my Instant Vortex. I was looking for a ceramic basket fryer and this looked to be the best one I found, especially for the price. I haven't used it enough yet to really evaluate, but so far it seems great, and also looks good on my countertop. It's very compact for it's capacity. I few things I miss from my Vortex is the shake/flip alert, which is such an easy thing to include that I don't know why all fryers don't have this. The other thing I miss from my vortex is the knob, which makes it so much faster to dial in the temp/time. I'm still debating whether I miss the window or not. It's sometimes useful, but not sure if it's really a crucial feature. But otherwise it's a great air fryer.
# Instant Pot Vortex Plus 6QT Air Fryer is the top recommendation from some review sites. I have the model with Odor Erase
If you have space, it really is. Just be cautious what you buy there are a million options. This one is the recommendation from America's Test Kitchen and is excellent. https://a.co/d/iyc9Y1F
Yes, or the upgrade version with a clear window and "odor erase" filter, which I have and love.
We got ours from a relative who couldn't get rid of the smell. After a few cycles at 400° the odor went away for us. But I think some folks are more sensitive to the plastic smell than others.
Can confirm this is the one (updated 11/24). Also, As mentioned elsewhere the clear cook odorerase version. is the upgrade pick
I'm on my 3rd AF. My first was an Instant Pot 6QT VORTEX Plus and the 2nd was an Instant Pot Vortex Plus 6QT ClearCook Air Fryer, Clear Windows. The 1st one was OK. I really didn't care for the one with clear windows. It just didn't seem to get as hot as the 1st one. I now have a Cosori Air Fryer Pro, Compact 5QT, Ceramic Coating. It gets up to 450ºF unlike the first 2 which maxed out at 400ºF. BTW I don't use the presets. I just set the temp and time myself.
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.

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

Ranked #1
Breville - Smart Oven Air Fryer Series

Ranked #1
COSORI - Turbo Blaze 9-in-1 6QT

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

Ranked #1
Ninja - Foodi Air Fry Oven Series