Been -
Since you are from up North and a bit left... The South begins in Virginia and ends in Florida..
Work Hard - There is outstanding baseball thru out the East Coast not just in the warm weather states, academically you can get both in the Northern States.but there are good academics in the South as well.
Your son needs to concentrate on what kind of school he wants, public/private..small or large, etc.. Then search for colleges that meet that criteria.. From there look for majors that your son is interested in studying and narrow it down further,, Then look at the costs of those schools w/o baseball money to ensure they are cost effective for your family.. THEN and Only Then look at the baseball program as well as the entire academic program.. From there start marketing your son to those schools.. you should have a list of 10-20 to start and then narrow down as interest increased or decreases..
Constantly ask your son.. would he go here if there was no baseball.. You are looking for strong yes's.. remind him that anything can happen so he has to pick a good home first, then baseball program...
Good Luck in your search and keep asking your questions..