Margaret Weis is an excellent writer and has written quite a few books about dragons. Eragon series is also very good and well written.
Dragon Rider was a good read, but more aimed at early teens than young adults, but I read it twice. Once to myself and once to my great granddaughter. She was perfectly capable of reading it herself, but she used to spend five days a week with me, when her dad was working and she wasn't in school, and it was nice to share that.