>>411653018
For dancing you do want wireless, and unfortunately Vive headsets are too bulky ( especially with the wireless adapter), which leaves you with streaming to Quest1/2 or Pico4.
For strictly PCVR the considerations are:
Quest1: OLED - blacks and colors but low resolution, 72hz
Quest2: LED - shitty blacks, ok colors, high resolution, up to 120hz
Pico4: LED again, meh colors, 90hz, but pancake lenses so significantly higher FOV and much smaller form factor. Pancake lenses also result in some nasty lens flares and internal reflections, not that fresnel lenses don't have their own problems.

Quest2 requires a third-party strap to be a workable solution, Pico4 is best with a third-party facial interface, but stick is not unusable.

ONLY FOR DANCING, you may want to consider Etee controllers. Index controllers are great but not very durable; they will break. Etee controllers will kinda suck for anything but vrchat, but they have finger tracking and should be durable ( no moving parts ). Shipping Dec. 30th.

Disclaimer: Own quest1, pico4, vive pro wireless, returned quest2, ordered etee controllers.

>>411653095
It's readily available most everywhere except the US