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

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We have a Ninja 12-in-1 double oven with FlexDoor. Love it. Our oldest has since moved out, but we were a family of 5, the oldest been a teen boy with a voracious appetite.
We have the Ninja Double Stack XL and love it. We use it more than the oven at this point. We pretty much only use the oven if it's something too big for the air fryer, like a large aluminum roaster.
We have a Ninja Double Stack XL Countertop Oven and Air Fryer. They cost about $300. Just my wife and I in the house. We love it. About the only time we use our regular oven is when we are making cornbread in a cast iron skillet or baking a big pizza.
I've got the Ninja dual oven with the little bitty top door you can open separately. I like it a lot.
The Ninja double stack XL was really big, it took up a lot of counter space I didn’t have. I ended up selling it and getting the Crispi Pro, which I love and it doesn’t take up my entire counter. I can’t speak to the Cosori, but I do really like the Crispi Pro. Seems easier to clean as well
I have the ninja double stack xl and I really like it. The bottom compartment really isn’t as big as you’re led to believe - you’re probably not going to cook a whole chicken in there, but it’s great for quick meals and much easier and faster than using your oven for anything. I use the baking, broiling, and air frying functions regularly
Ninja is on other level .. if u guys can spurge get the ninja one .. you won’t regret it .. esp the roast option for chicken is so good ..
From Dubai and double stack xl .. so good .. snug fit for double the option .. If u don’t have an insta pot type thing.. would suggest u to get the combo one from ninja ..
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