Part of YC’s W18 Cohort, Supermedium, is a superset of webVR experiences. It features work from the likes of Inigo Quilez, Ricardo Cabello, Marpi, and others, the browser can be downloaded on Windows today.
I enjoyed Shadertoy’s audio visualizations in particular though they didn’t support touch controllers. An idiosyncrasy of the platform right now is that usually, experiences have HTC Vive controllers supported only. This means that when you use your Oculus Touch controllers the API will receive button presses and input but they will visually appear to come from an HTC Vive controller.
Check out the Supermedium website here. The founders are experienced contributors to webVR efforts, Kevin Ngo and Diego Marcos, and technical artist, Diego Goberna.