Standmount speakers 4k-8k

Great and helpful comments. Thanks to all. 
I'd just add that in my limited audiophile experience I've bought two sets of speakers for 2 different rooms. Both of the sets I bought (BW CM9 and Monitor Audio GX-50) I liked much more than the 1/2 dozen or so competitors I listened to.
So for me it's certainly not about 'best' but about what I like, and to my surprise, given how expensive this stuff is, I have very strong preferences, which is why I doubt I'd ever buy any speakers, at least, without hearing them first. 

Gershman stand mount monitors were one of my favorite new finds this year at Captal Audiofest.  Maybe worth a look.

Tekton is very popular in these parts due their affordable cost and friendly load that might lend themselves uniquely to some amps.

Not sure if you have a Joseph Audio dealer near you, but the Pulsars would certainly be worth an audition.  Best of luck in your search. 

I'd like to add another Proac Response D2 recommendation. I've owned mine for about a year now and they really communicate the music. Proac speakers have a distinctive personality which I find very appealing. KEFs would also be a good choice, but a very different sort of sound. I briefly auditioned a pair of Totem Element Fires which seemed pinpoint accurate, but sounded a little more recessed and slightly less sweet than my Proacs. I didn't get to hear them in my own room though. As the above posts illustrate, there are many excellent speakers out there and choosing the right ones can be a fun adventure and/or an exercise in frustration. Best of luck with your search. Hope you'll let us know when you finally decide. Footnote: if you buy Proacs new (and this is true of many speakers) please have patience with them; they take at least 100 hours of playing before they find their voice but when they do, you'll hear the magic. This is based on personal experience.