@ssmaudio. Many factors. Besides budget and your listening taste, there are certain things that let’s you narrow down. The soundstage you want, the gears (amps, streamers, dac) you have, how much bass you want, the size of speakers, the looks (it does matter if you want your spouse approval), ease of driving the speakers. Once you have those, you will have to have understanding of sonic signature of each brand. I will pay attention to reviews (not always). I am not sure if anybody have had just one speaker first time and done with it. Sometimes you think you got best and may not be best match to your system, and may want to change, but it’s ok. One thing is for sure, there is nothing like perfect speaker, no matter how much you spend. It is just preference and you will have to compromise in some areas. If I don’t have near by dealer to audition, I pay attention to reviews and also listen on YouTube just to get some idea. As you know, not all reviews are transparent, I get some thoughts from fellow audiophiles in forums for real world experience and ideas. Even this can get tedious, as you ask for hep to narrow down, but you may get lot of suggestions, which is good most of times. Hope this helps.