I live in the middle of nowhere so good books are only found on Amazone and the like. I use my normal tablet/phone for reading but when its not to hot I like sitting outside to read. With the sunshine and other reflections on the tablet it is almost impossible to read. Are devises like Kindle better on thins? And if so what would be the best device to buy?

I use a Kindle every day, way better than a phone or tablet for reading.

All my books I download from Z Library or Mobilism.org onto my PC, then transfer to Kindle using a data cable and Calibre Library. Format doesn't matter, Calibre fixes that on the go.

I use an android Tablet with an antiglare screen to read. The app I use is called FBREADER and it allows me to use a screen that is similar to the liquid paper that most e-readers use which also helps with glare. There are also various free book sites that you can download ebooks from if you want to read or re-read some of the classics.