Warm Sounding Speakers

A few to consider: Dynaudio, Proac, Sonus Faber, Vienna Acoustics, Verity Audio.

Price? Monitor vs floorstander?
Those questions aside, I'll make my recommendations.
Soliloquy 5.0 monitors. The most natural sounding speakers I have ever heard/owned. I have tried numerous times to upgrade from them but nothing works as well. Never fatiguing, always easy to listen to and I don't feel as if I'm missing any detail. I was reading a review of a dac the other day and the author mentioned the dac seemed a bit bright so he tried it out with his 5.0s which he claimed were intentionally voiced to have a warm sound.
For a floorstand speaker I recommend Meadowlark Audio Kestrel, the original Kestrel and not the model II. Very similar sound to the Soliloquy with just a tad deeper bass.
Both of these speakers image very well also. Also, both speaker companies are out of business so maybe my taste is not what the market likes. I have to say I can't tolerate speakers that I consider "audiophile" speakers with an over abundance of treble energy.

I'd suggest buying amplification for speakers, not speakers for amplification.