I cannot more heartily recommend George R.R. Martin if you have interest in the fantasy genre. He's written some Sci Fi as well, but I'm not nearly so familiar with those as I am with his "Song of Ice and Fire" series. (If it makes any difference to you, HBO is currently working on making a series based on his books, one season per novel.)
Sadly, only the first and fourth book are read by John Lee. Ignore the whiners on Audible that say he's not as good as Roy Dotrice; they're insane. He'll occasionally pronounce a common word funny (and I don't think his English accent enters into it), but that's it. Roy Dotrice only seems capable of about five character voices, and four of them are awful. This--to me--makes the second and third book hard to listen to. Also, Martin is only about halfway through writing this series, and the gods only know when the next book will come out.