Elite: Dangerous - but spend time to tune the graphics settings. It's a game that needs to be tuned.
Fallout 4 VR - it's due for release in two days. [Edit: My bad, for some reason I had October in my head, it is actually out in December 12, not October 12]
Onward - Something compedetive and active. Also screen resolution in that game would be a huge advantage to see
Project Cars and/or Assetto Corsa