Ninja
DoubleStack 10 QT XL SL400/401/451

Ninja
Ninja

Ninja

Go with the Ninja. Ninja makes consistently good quality that lasts years
I have tried various brands and I prefer ninja. I treated myself to one of the vertical stacked double basket ones recently and love how little space it takes. Technology Connections on YouTube does a good video on the different styles and concludes that the basket style performed better than the toaster oven style.
Try this double stack air fryer by ninja. Looks very cool, takes less space. Plus it has some functions which genuinely surprised me - like you can cook four different kinds of food at one go
Ninja double stack has been a cool addition to my kitchen. The sync function is super cool and it fits right into my tiny Mumbai kitchen
Can’t say I’ve tried any others but I’ve never had any issues with my Ninja. I have the one that’s stacked instead of side by side to save counter space and I love it. Only complaint is the cord is a bit short.
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
Yes and no. It’s more about the power they have, the size, and options for me. While not necessary to spend $300 on a good one, a decent one with good power and size will run at least $100 imo. I started with a cheapo Bella one, power sucked. Upgraded to a nicer $70-$80 off brand one. I liked it but it died after a year. I’m now the proud owner of a Ninja 6 in 1, and then was gifted the Ninja Crispi Pro. While I do love the pro, it cooks just as well and has the same options as my $129 Ninja 6 in 1, the Crispi pro is easier to clean though because of the glass bowls, and supposedly without the chemicals found in basket style ones. I would not have personally spent $279 on it though, but since it was gifted to me I will happily use it!
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