I wish I found this thread before starting one a week or so ago. I had been on the fence on whether I should jump in now or wait till next generation. I've made up my mind and pre-ordered the Borderlands II VR bundle that releases on the 14th. I will be throwing in Astro Bot, Moss, Drive Club, Skyrim, Farpoint, Resident Evil 7 Gold, Until Dawn, Preta, Crystal Rift, Firewall and Discovery. Hopefully I can enjoy without motion sickness. The thing that convinced me was the 50 + games releasing in 2019 (many look really impressive).
While not as good as the BF deals that bundle is still a great way to get into VR imo.
If you want to ease yourself into it you should start with demos/short movies without locomotion, like
Tumble VR, Headmaster, Super Hyper Cube, Statik, Job Simulator, Gnog, Moss, Allumette, Invasion, Crow, most of the Playroom VR mini-games (the Astro Bot prototype "Robot Rescue" is not locomotion free) and ofcourse Beat Saber from your bundle and there are many more.
demos with (imo) very mild locomotion are: Robot Rescue/Astro Bot, Until Dawn, Thumper, Rez Infinite, VR Worlds deep sea, Star Child etc
And remember to just stop if you feel uncomfortable, never try to "push through" , also ginger seems to prevent motion sickness for many ppl. My PSVR v2 at first gave me headaches because it was too tight, but after several sessions the rubber stretched enough and now I have no problems playing for several hours per session.