How tall are your speaker stands

I have found that for me 42"-44" ( tweeter height ) works best......I have 20" Stands and the tweeter is 22" ( from bottom of monitor cabinet ..It all equals aprox 42" height of tweeter ( center ) from floor .......42" is aprox ear height from my listening chair......

Tall enough to get on all the rides.

Stand height depends on tweeter height in relation to the listening position. The tweeter should be at approximately ear level.

Timrhu is right, it depends on the speakers.

Generally speaking, I like tweeters to be above my ear level. This usually produces a more spacious sound minus the brightness. Another advantage is higher off the floor and clean up the bass even more.

But there are exceptions. My large speakers sound better with my ears at tweeter level.

I agree 100% with member Entrope. If anything you can always
change out the listening chair/couche(s) if needed. In my case the stands cost a lot more than the chair did! LOL
BTW- get an adjustable type stand 20-24" should do the job nicely.