VR is full of FPS games so its hard to pick the best, many feel the same so ill seperate them into catagories
Population 1
Contractors
Breachers
After the Fall (Zombie, 4 player co-op, Adventure)
Drop dead: The Cabin (Zombie, Cop-op, Wave Defence)
Guardians Frontline (Sci Fi, Co-op, Wave Defence, Strategy)
Espire 2 - (Sci Fi, Stealth)
FPS/Hack n Slash
Barbaria
Dungeons of Eternity
In Death Unchained
Iron Man VR
Into the rift
MotherGunship Forge
Pistol Whip
Resident Evil 4
Resist
Rogue Ascent VR
Sairento VR : Untethered
Superhot VR
Survival Nation
The Walking Dead: Saints & Sinners
Vox Machinae