Looking for a e ink ebook reader that's easy on the eyes, can do Libby library books easily, and extra bonus if there is a built in planner that could sync online. I don't want to be locked into an Amazon or other system that requires subscription services. Thanks!

Edit: thanks a ton for all the replies and advice. I ordered a kobo libre color! Going to set it up for the misses as a gift. She generally wants a physical book but recently had been reading on her phone and complaining about it hurting her eyes. <3