Are there any good FOSS ereaders out there?
I like reading print on paper. And there are just some books at my library that are only available electronically. So, I'm humoring the thought of a device like a kindle. I think I have a really old Kindle. But I doubt I have a charger for it. If it works still.
KOReader is great if you have a device you can put it on, which includes most old kindles.
If you have an old kindle it should charge with either USB Micro-B (aka Micro USB) or Mini-B, both of which should be pretty cheap to find somewhere. Standard sizes and all.
There are a lot of people on this instance with kobos; worth asking around. :)
wyatt 
Amin, minor deity of the legume realm