Oculus Rift LeftTouch Controller ( low poly, no UVs )
I made these for my game BallooningAdventuresVR. They are free - Enjoy 😁
There is also right controller, just search for "Oculus Rift Right Touch Controller" + sketchfab
Also I have low poly Oculus Rift S / Quest controllers.
For use in an a game engine you will have to re-parent some extra game objects to get the correct pivot points.