If you have the budget for it, the Valve Index is the best PC-based VR headset you can buy.
Valve Index® Replacement Right Controller on Steam
Valve Index review: high-powered VR at a high-end price - The Verge
Valve Index review: high-powered VR at a high-end price - The Verge
Valve Index Prescription Lenses
Valve Index Controller - Left Only
Valve Index Review – The Enthusiast's Choice in VR Headsets
Recent Hiring Hints at Next-gen Valve Index Headset in Development
Valve Index VR Kit First Impressions – New Screwdriver
Valve Index VR Full Kit : Video Games
Valve Index Review – The Enthusiast's Choice in VR Headsets
Valve Index reveal: The best of VR's first generation—but is it worth $999?
Valve Index Is A Higher Quality VR Experience, Limited Preorders Open Tomorrow
Valve Index: A good fit? Part 3 - How to solve problems in the ergonomics of the BMR speakers - The Ghost Howls
Valve Index Controllers