I always truest The Wirecutter for these kinds of things. They recommend [0] the ASUS Chromebook Flip C302CA: https://www.amazon.com/dp/B01N5G5PG2
Acer's chromebooks are excellent. Choose IPS.
https://www.acer.com/ac/en/US/content/models/laptops/acerchr...
Any particular reason you've ruled out an iPad Pro?
Originally my mom had the 11" but it was way too small for her eyes and has since upgraded to the HP 14" which is far better. While I encouraged her to get it to reduce her risk of spam and viruses.. she still manages to get a "toolbar virus" or "extension virus" every once in a while.
I believe she had her Chromebook for 4 or 5 years before it just died... and she ended up buying another one. Can't really complain.. 4-5 years for a laptop that is used everyday is pretty good. I tend tog o through 1 every 2-3 years. But love it for its speed.