floor-stander speaker for "classical"

Well, you need to match the spkr to the amp, so what amp are you using and what is your budget for speakers?
Without knowing your specifics, the Totem Arro is a great performer for a small room. Good dynamics and a huge soundstage.

Totem Arro does not scale up well for orchestral. I would recommend Magnepan if they'll fit in your room. Perhaps MMG Super?

I got Magnepan 1.7s last Fall and they have invigorated my classical collection. They keep full scale orchestra and chorus sorted out; tonal balance is excellent, musicality and clarity great, especially for the price.

What is your budget? Have you considered silverline preludes?

Budget is $2K, or under, and the amps I use are Naim, Rega, and a variety of chip and tube models.