Your first step is to just figure out east coast vs. midwest vs westcoast vs some combination between all of those. This is important because not only will you do better where you are happier, but the schools will tend to show locals (regionally) more love. So for instance if you are applying to VCOM or CUSOM, you will have an easier time getting in if you can say, hey I grew up in Appalachia and I want to settle down here vs. some random dude from Hawaii who doesnt know how to spell Appalachia. This is not 100% the case 100% of the time, but generally speaking it is true. Also it can help slightly for getting into residencies around the region that you went to school. Again this is not 100% true all of the time, but generally speaking, you can get audition rotations and get a foot in the door if you went to school close by (at least its easier if you are close by). So first thing is just where do you want to live?
Then you screen for urban vs rural, this is easy enough. Its important to look at the entire region though, because some schools that seem super rural actually are pretty nice - VCOM-CC comes to mind. Its in a pretty fast growing place. Same with CUSOM, this school is in one of the fastest growing areas in America and is in the center of the "research triangle." But on paper this place seems pretty rural.
Then after that you kick out schools based upon in-state bias and/or cost. So for instance lets say you want to settle down in the mid west. Lets say you are an Iowa resident. Oklahoma and TCOM are both midwest schools but they have massive (roughly 90%) in-state bias. So your chance of getting in out of state is slim unless you have some major connection with the state or have stellar scores. Other schools such as MSU indirectly screen out of state applicants by charging a ridiculous amount for tuition. CCOM, while not doing any sort of in-state vs out of state thing, just charges a ton regardless of where you come from.
Then you screen for other things that are just goofy. So LECOM for instance, people either love it or hate it. They are ridiculously cheap, but some people dont like the idea of paying tuition to basically teach yourself stuff. Others really like the PBL thing at LECOM. Some people really want other things such as religious affiliation, so they will apply to somewhere like LUCOM. Others hate that idea so will not apply there.
Thats about how you go about it. Message me if you want any more help.