Is there any tablet that’s worth buying for practicing/reading Japanese?

Update: An E-Reader is the term I perhaps should've used.

Update #2: I do have an iPad Pro, but the brightness, even on the lowest setting, can make my eyes burn.

I've seen this topic asked quite a lot, but nothing relatively new.

What tablet(s) would you recommend for reading/practicing Japanese?

Something that ideally:

• Can work with my Anki + Yomitan
• Can read either Kindle Unlimited books and/or PDFs.

I imagine Kindle would still be the best, but I'm open to other options.