Being a bookhound myself, I loved / still love all sorts of stuff.
Let’s See,
The Black Cauldron Series
The Sime/Gen Series
Heinlien (Almost any of them but esp. Have Spacesuit will travel)
Gates of Ivrel by C.J. Cherryh
Star Rebel Series by F. M. Busby (I actually had to wait for the later books to come out.)
The Belgariad by David Eddings (Same as above)
THe Sander War Series by Ingrid
and many,many more.
I used to alternate between world history, fables/legends, sci-fi, fantasy, and biography. I would spend several months in each catagory and then go off on some wild tangent into another genre.
Oh. And of course the John Norman “Gor” Books. (Given me by a friend of the family when I was 11 or 12)