VR is amazing. It really is a huge leap forward in terms of immersion. Your brain is fooled that you're right there, sitting in the cockpit. Certainly for me, once I tried VR there was no going back to 2D gaming.
For an all round great headset I'd recommend the Rift S. It's easy to set up, no trackers to mount on walls, cost is pretty good at £399 (if you can find stock). The resolution is also good for the price. I use mine for non-simulation games that need good controller tracking.
The HP Reverb is the current king of resolution (and hence image clarity), but it's currently about to be replaced by a G2 version. If you can find any stores off-loading stock it could be worth consideration. I wouldn't pay full retail right now. I got mine for £460 on Black Friday
Lastly, budget options. You sometimes see the Samsung Odyssey+ in sales or available used. There's also the original Oculus Rift, but check that the cable is in good condition as you can't get replacements.
Unfortunately though, with worldwide lockdowns prices of new and used tech have shot up, making the Oculus retail pricing look pretty attractive.