I've been thinking about how osu! would look like in vr glasses if there was such a function. I'm not an advanced user, I just got my first 86pp recently, so do not hate me pls if there is any topic like this.
You can play any non-vr game in vr with either oculus or vive which means you can play osu and your vr headset will replace your monitor (you still tap and play with tablet/mouse). There is also McOsu on steam and it's free but I don't know if it works with oculus, I only know it works with vive but it is a different vr osu. The circles come towards you and you have to click them with your vive controllers.
There already exists an application on Steam that allows you to play osu in VR and with some extra features. It is called McOsu but I have never tried it so I cannot tell you if it is any good or not and you can't submit your scores using this application but you should still try it out.