I am like many of you not using my PSVR set because of motion sickness mainly.
Me and the wife want to focus on using it a lil bit daily to get our "legs" so to speak.
What games would you recommend?
I tried the Astrobot demo and felt queasy but adjusted a bit over time. She gets it even worse than I do.
Unfortunately, VR legs aren't always something you can get, even with practice. One thing you will find is with higher resolutions, better fidelity tracking, and higher framerates, the nausea will decrease dramatically. Unfortunately again, PSVR is maybe the worst platform for that.
I would avoid anything where your viewpoint moves without your control, or it moves via directional inputs. Astrobot's pretty bad because your view scrolls along with his progression through the level.
I'm not sure what I'd recommend on PSVR. Maybe Superhot VR, although I think you start teleporting between bodies at some point, which might cause issues. But teleport jumps are surprisingly not as bad as smooth panning movements.
Job Simulator would probably be good! It's a funny game, and you stay rooted in one place. Vacation Simulator also just came out, the sequel, so if you end up liking the first, the second is right there. (Rick and Morty VR was made by the same team, and is more of that style as well.)