>>305718663
You have a few options. First and foremost, without a facebook you can still launch the software something they have already stated so simply turn on the software then run steamvr. If that sounds like shit then here is what is viable rn:

>Used Vive
Getting into steamvr ecosystem is pretty cheap atm you just have to deal with vive wands and screen door effect. Will probably be the cheapest option as both used go for around the same price so it's an easy pawn swap.

>WMR
HP reverb I suppose to have better display than index while supplying the same sound quality, if the tracking sucks enough you could always invest a little extra to go hybrid.

>Index
Despite the constant complaint of RMA hell you'll basically have a life time warranty on your VR set up as steam is still allowing RMA after the 1 year warranty is up.

>Cosmos
Dont.