i, perhaps, am reiterating what others have said on this thread, but you may be surprised by how size, location, cost, and availability of a major can help narrow down a list. i, like you, struggled to narrow down my own list (though it wasn’t as large as yours), but i decided to look into those four things specifically, then i moved on to “fit.”
also, geographical diversity can sometimes be a factor when looking at your chances at universities. for example, i didn’t apply to davidson college because i felt disadvantaged because i’m from a southern state right next door to north carolina. it may have been a silly reason not to apply, but i did look into things like that to help me narrow down my list even more. i’ve been through the process twice now (i’m a gap year student), so i have a tiny bit of wisdom/guidance to share if you ever need it. (though, i doubt my wisdom is as helpful as some of these fine people’s above me!)