Best kindle to buy in 2026!

Which Kindle will you guys prefer to buy ?

Heard good things about Kindle 4, Kindile touch, Kindle voyage, Kindle oasis, or PW models?

I can see a lot of K4 and touch for under £20 on eBay / Vinted.

Battery, backlight and jailbreaking what do you like in these models ? I got a kindle scribe 2024, but wanted hear thoughts here for a second device. I live second hand devices on a bargain and can swap batteries/ modding.