Best device to sync with calibre-web?

Hi all,

I'l looking to buy a ebook reader (kobo, tea/vivlio, or other, but preferably not kindle), and sync the books with calibre-web.

I succesfully installed Calibre, then Calibre-web server (on a Synology NAS), with a few ebooks.
Now I need a ebook reader !

I want to download books from my calibre-web server, to the ebook device, using wifi.

What are the devices that work best with this?

I read that Kindle is working fine, but I prefer open epub format.

Is it working well with kobo devices ? And Vivlio/Tea ?


Thanks for your help!