Trying to get away from my phone more, and an e reader sounds like a good way to get myself to read more. Kobo is sounding like the most recommended one based on some googling, but I’m also ok with jailbreaking something like an older kindle from eBay. Something that plays nice with Libby would be ideal but not required. 
I have a kobo and this post encouraged me to try and install koreader, which didnt work and I thought that was because I didnt have nickel installed so I tried that and despite dragging the file to my kobo, that also wouldnt install
Calling hexbear tech support line (I think all we have is a Linux vanguard party though)