Rja
The field will narrow abruptly once you consider the needs of the speakers and the abilities of your power amp (s), along with the size of the room and your preffs for esthetics and of course there may be that budget aspect too.
The notion which always preempted my getting monitors was or is, they take up the same footprint as floorstanders. Monitors however do have usually a more open display of the sonic depiction... That and I like a very good bass influence when I listen to music.
As time has passed however I've found bass under 30hz isn't all that necessary for the majority of musical reproduction. So I'm more inclined now to really consider some more upscale monitors for my next speaker upgrade too.
JM Reynaud, Joseph Audio, and Daedalus all have very interesting units out now.All of which indicate amp friendly usage and not prerequisite of enormous power amps to drive them quite satisfactory.