Floorstanding towers

You could narrow things down quite a bit by defining your "flavor" preference. For example, I have am a detail/clarity/sparkle fan who loves female vocals. I like a speaker that some others would consider bright; but actually measures very linear. I have Canton 3-way bass reflex towers and Boston Acoustic 3-way acoustic suspension mini towers. 
While shopping for the Cantons last year I auditioned in reverse order of preference Golden Ear Triton 7s, SVS Ultra, Elac not sure of the model, I think it was an older European one, and SVS Prime. The Prime was very nice to my ears. Of course, many people love a rounder, softer sound signature without sharp edges. And the U shaped response curve is still very popular. What's your favorite flavor?

The closest Canton model currently available to the used ones I bought is the Ergo 690. They can be had new for $2,800 a pair.
https://soundapproach.com/canton-ergo-690-dc-tower-speaker-single.html

If I hadn't found such a good deal on the Cantons; I was very interested in Tekton.

Look and see if you can find a pair of used Legacy Audio Signatures SE's. IF you could find a pair in the 3 to 3500 price range that would be the way to go (IMHO). I currently have 3 pairs of the Legacys  (Focus SE and two pairs of the Studio HD's). Theses are truly unbelievable speakers and will compete with speakers that cost 4X' s their cost.

I have the same setup and I use Tekton Pendragon and totally love them. I'm hearing incredible things about the Double impact as well. They are big and you need to have the room to place them, also they may not be wife approved if that's a concern.