New to this help needed new stereo

I’m sure there is a post on this. I’ve got a 14 wife has a 17 sequoia we wanted better bigger units without going crazy. My wife’s is small and she just wants something easier to see and use as a backup camera and mine is starting to freeze. Just a touch screen that hooks up with phone. Anyone can give links that would be great. Thank you

 

Not knowing a lot of variables, budget being one, I'd look at https://www.crutchfield.com/m_266150/Car-Stereos.html

You can sort the results by vehicle, screen size, Appleplay, BT , etc.
If you're not changing anything but the stock deck this should be easy.
Pick your units, wiring harnesses, and save a Sunday afternoon to get it done.