So I just bought a Hegel H390 and

I have the original KEF LS50's hooked up to a lot of good amps. Currently I have the Benchmark AHB2 monos on them. I love how the AHB2 pair with the LS50. If I could get a Blade to fit into my room I would but I am using the LS50 + KEF KC62 sub. It is not too bad but a far cry from the Blade. 

The KEF Reference 1 is a pretty nice speaker with Hegel gear. They should start to get discounted soon with the META upgrades that KEF should be introducing soon for the Refence and Blades.

@jjss gave a good framework.
My two cents is that asking "what matches to the hegel?" is the wrong question.  Any really good amp ought to work well with a wide variety of speakers.  what you really need to ask is "what speakers do I like?"; what speakers can drive my room?" and "what speakers are appropriate for my musical taste?" etc.
A really great amp ought to be a chameleon these days. Mine is.

With the limited number stores around me, hearing most of the speakers discussed will be really hard to do, so I’m thinking I’ll get a pair of LS-50 Meta’s, as several have suggested and go from there.  Everything I’ve heard and read says even if I don’t like them, they should be pretty easy to resell.
Again,  thank you all for your suggestions.

JD

In your 15X15 room a closed enclosure speaker might help to control bass better than a ported type, I have a room very similar in size and Magico ( old V3) made it for me, that after many trial and error…

Amazing amp!!
congrats. Will deliver years of musical bliss. 
   Looked at Hegel years ago, I was turned off by the “stuffing” of so much in the stereo amps, caps, wiring, VA torroid , etc. 

   Hegel is great stuff.

plenty of power for hundreds of great speakers. 
   Would take the suggestions on Dynaudio, they are amazing. Only reason I didn’t go Dynaudio is it was only a few hundred more than what I bought. 
  Enjoy, you made a great mp choice for sure!!

 Report back after your ears are accustomed to her.