Floorstanding speaker experiences/recommendations in the $12-25k range

Buy a pair of subwoofers before you buy any speakers.

I agree. Get a nice subwoofer or two to augment the speakers you love. For music I have a KEF KF92 and it is wonderful. 

All of the above is really just different versions of the same thing, unless I read over  one. Do yourself a favor and check out Ohm. Completely different experience  and changed, and I mean improved, my enjoyment of listening to music. 

Agree with those suggesting subs before dropping $15-$20k on new floor standers.  A well integrated sub that goes to 20Hz sounds like the ticket and much cheaper.  If it turns out not to work for you sell the subs and move on to a floor stander.  

Hello, I have a couple recommendations:

Tekton Encore or maybe even the new ones- 1812 overture? $21k

I like this because they are new. 

Sonner speakers win a lot of Best Room at audio shows

If you truly love your your speakers in your room then try a pair of Rel subs  

If the RELs take up to much room for the frequency and you want to really blend your subs in then go with the JL Audio F110 or F112 subs with the JL Audio CR1 crossover. You will need an identical interconnect that you are using on your amp. 
this will seamlessly blend your speakers to your subs using analog not digital. This is what I and friend use right now with out full range speakers. It’s really amazing. $11k to $13k plus matching interconnect. 
 

Last is the Revel Salon 2s speakers. I believe these go down to 25 hz. They don’t take up a huge foot print and even have built in crossover controls on the back. They are a four way design with two different mid drivers and beryllium tweeters that are smooth as butter. Knew they are $24k. Used is around $10k-13k. They like power so a good amp is recommended. 
 

I hope this gave you some good ideas.