A number of people have asked about alternatives to #Kindle #eReaders lately.
Personally I can recommend Kobo, they're nice devices and you can sideload popular DRM-free formats like ePub etc.
More about them:
https://gl.kobobooks.com/collections/all
Where to buy them:
https://gl.kobobooks.com/pages/retailers
For more alternatives to #Amazon services, see:
https://switching.social/ethical-alternatives-to-amazon-and-goodreads/