As for Foxbats, you can take a ride in one but I hear it's damned expensive, and idk (a) which variant and (b) even if it's a D, will the pilot give it the full beans? I suspect probably not on both counts.
You don't notice speed at altitude, so we can ignore that aspect of welly. That leaves G force, which you do notice.
Foxbat max 2.2g with full tanks, 4.5g abs max.
Standard training glider: -1.5g, +3.5g (and you will pull 3g during training). I've experienced ~3g continuously for a minute or so, in a tight strong thermal.
Aerobatic glider: -6g, +9g.
In the Top Gear car vs Eurofighter contest, it looks like it takes the Eurofighter ~35s to get to ~2000ft.
In a stiff wind down the runway, gliders take ~45s for the same
As for sensation of speed, it is hard to beat entering a spin at 1000ft. You descend at ~60ft/s, and have to dive at the ground to recover.
Alternatively, eyeballing a sheep whizzing past at 70mph just off your wingtip is also entertaining - while watching for the other glider coming in the other direction also at 70kt, same altitude, same distance from the ridge
https://youtu.be/AIXCTDnT55s?t=78Now, tell me again what is the
unique attraction of flying a Foxbat?