used kindle paperwhite, check firmware version to ensure jailbreak

jailbreak, install koreader

use calibre to manage library, source books from uh. the seas

amazon devices have quite good screens for the price

however, if you are reading comics, you should get a bigger screen probably a tablet, look into boox and meebook, both are android based

i would not recommend color screens rn, they still have significantly lower contrast and resolution and refresh is slow af

talk to people irl