Good luck in landing where you want to be. you have a very nice system. I spent somewhere around your budget, not too long ago on Sonos Faber Il Cremonese Speakers and have been very pleased. But as others have said, for that kind of money there is a big universe of very competent, well-made speakers. While hearing them in your room is certainly ideal, auditioning speakers in the dealers showroom is still helpful. I am also a big fan of Revel And I suspect those are doing a good job for you now.
I will echo (pun intended) A previous comment about room treatments. Coincidentally, I just got finished with a room treatment project in my listening room today. Frankly, I was skeptical of how much I would gain. I am pleasantly surprised. I didn’t think I had a bad room but the difference is quite significant and well worth the money. I have auditioned a number of tweaks, such as filters, audiophile switches, etc., and just have not heard enough difference, to my ears, to justify the money. So the improvement from the room treatments was greater than expected, and the cost, of course, would be far less than you sre talking about spending for speakers. Something to consider.
Good luck!