Trust your ears!I want warm signature sound.I like the sound style of the Proac Spendor. But they are expensive. Which speaker of my choice sounds closer to them?
If you have heard ProAC and Spendor (particular models) you may wish to consider saving up and getting one of these as this can be a long term investment and satisfaction. Used market is an option too.
Do keep in mind the Amp and the rest of the chain where you heard these speakers also matter (Synergy and measurements).
Finally your room matters (a lot) it will sound different from the dealer or any other room. But this is the last and least of the challenges. (Least expensive?)
I suggest starting your journey of getting the sound you like with good amp-speaker matching. I wish I had this advice when I started putting together my set up component by component only to find disappointing synergy even as each component was individually well engineered and reviewed.