Since crypto miners have sucked up most of the supply.. I would look at a used Radeon 290 (x) granted your powersupply can handle it. If not that maybe try for a 980 ti used on ebay.PC has AMD Radeon HD 6700 Series GPU, can I put a GPU in that will run VR? or what GPU could I use that is MUCH better than present GPU? eBay,etc...