Some other suggestions:
Dragonriders of Pern series by Anne McCaffrey
Vorkosigan Saga series by Lois McMaster Bujold
Foreigner series by C.J. Cherryh
I'm sure you'll find the above ones at any library.
In Her Name series by Michael R. Hicks. The first and the forth book from the series are free at least at Amazon.
Ready Player One by Ernest Cline