Standmount speaker recommendations for vintage amp

I have a Yamaha CA-2010 integrated amp (120W) in pristine condition. I am mostly playing Spotify through a Sonos Connect ZP90. My first speakers with this setup were Aperion Verus Grand bookshelf speakers. About a year ago I moved to EPOS Mi5 speakers, which seem to have better bass clarity and depth.

My questions is this; is there a loudspeaker under $2500 that would be a noticeable upgrade sound-wise to my current set-up? If so, what recommendation do you have as a good pairing with my Yamaha Amp?

The Harbeth P3ESR would be a perfect fit. I have had many monitors and the Harbeth is my favorite.