You need to go where the programs are, not where you feel the best music scenes are. Or, if you stick to the scenes you like, you’ll have to sacrifice the quality of the programs you’re seeking. I did a cursory search and found what you already have: the best programs for music production seem to be Berklee in Boston and Indiana + a bunch of other schools that are not in your target cities (including a shady for profit!). FWIW, Boston is hardly lacking a music scene (there are some great clubs & almost all major music acts + great indie acts roll through Boston), it’s just not a center of record production. But Berklee is famous worldwide for it’s programs, so it’s more or less the gold standard school to go to for music careers.
If what matters most to you is being by the best concerts (I mean, why else mention Coachella?) and having year-round internship access (as opposed to just summer access), then you’ll have to work backwards: search the sites of schools in Los Angeles, Atlanta and Miami and see what their music departments are like. Most major schools will certainly have music programs, but they’ll be theory, history & performance based. They’re unlikely to have a specialized music production program, however. If the program matters most, you won’t be in sexy locations… you should also look at Nashville, btw, which is a major music scene and has some amazing schools, as well.