Neil Gaiman lists the nominees for best novel at the 1965 Nebula awards:
  • All Flesh is Grass by Clifford D. Simak
  • The Clone by Theodore Thomas & Kate Wilhelm
  • Dr. Bloodmoney by Philip K. Dick
  • Dune by Frank Herbert
  • The Escape Orbit by James White
  • The Genocides by Thomas M. Disch
  • Nova Express by William Burroughs
  • A Plague of Demons by Keith Laumer
  • Rogue Dragon by Avram Davidson
  • The Ship That Sailed the Time Stream by G. C. Edmonson
  • The Star Fox by Poul Anderson
  • The Three Stigmata of Palmer Eldritch by Philip K. Dick
Quite a list. I've only read a few of these, but based on name recognition, I'd say it might be fun to pick the whole lot up for a little SF nostalgia.