So what's the best, most open, e-reader to get?

I'm being pushed out of one increasingly locked-down corporate ebook racket and I don't want to sign up to another one.

So:

- Who's making the best e-readers that'll allow me to buy ebooks from different providers?
- Who's selling eBooks that aren't locked down to a single brand of device?

(I'm in the UK)

#bookstodon

@TeaKayB my masto timeline seems excited about this thing lately https://mastodon.me.uk/@semachthemonkey/116370548501602833

I know nothing more about it except i saw a few posts go by...

@mair @TeaKayB Yeah lots of comments not only on the fediverse but outside of it too. For me is too small but that's the most pocket-sized I've seen and it has different firmwares too.
@ghostdancer @mair
Yes, it looks like it might be a little too small for me too... But a little too small might work out better than a little too big.
@TeaKayB @ghostdancer as the actress... no, sorry, wrong thread