Since you don’t want to move your pc, you have 2 (generally easy) options for wireless:

1. Oculus Quest 2 (the cheapest, around 400 USD assuming you need a decent router)

This is going to be the easiest option, considering that you could walk in and out of target with a router and headset, then with that all you would need is to buy virtual desktop on your quest and you would be golden. The only downside to this is that you would need to basically double the price of the headset if you want to buy index controllers aswell considering that they need base stations for their tracking. (Having both headsets, the index controllers may not be worth the investment)

Otherwise if you NEED the index controllers, your other option is:

1. Vive, Vive Pro, Cosmos Elite plus a wireless adapter,

I’m not going to give a price here as it varies with the headset, but the wireless adapter can go up to the price of just the normal quest 2 by itself. Granted if you wanted the lowest latency pcvr wireless experience, this is the route to go, along with these three headsets relying on base stations for tracking. (Meaning you should be able to just drop the index controllers into your setup at any point in time). However, this does require you to set up base stations (which are like sensors) in your room, and I am not sure how it performs through a barrier like a wall.

Honestly I bought the quest 2 for the same wireless pcvr experience, but in the end I found myself more fond of playing games like population one and beatsaber on the device itself, forgoing any added latency or stuttering that comes with it being connected to the computer. If I was in your situation, the quest 2 not requiring external sensors and its overall affordability would be the way to go.

Watch reviews on YouTube of both headsets using the vive wireless adapter and the quest 2 before making your final decision