Good advice so far....here is some more
Get a copy of the Princeton Reviews guide to America's 351 best colleges. Costs about $30. Well worth the cost, it was invalable to us. Lists prices, entrance requirements, impressions, size, and on, and on, and on. You'll get a good picture of the best 4 year schools that you might want to end up at.
Choose perhaps 20 four year schools that seem to make sense to YOU for one reason or another. Then you can start researching the schools and baseball programs on line. Researching whether they might be a good fit or not. Academics, geography, level of play, intended major, character of coaches, players and team, cost, needs.... As you research you'll find that the schools will begin to pare themselves down. Call and ask for catalogs, and baseball media guides.
If your going the JC route you would want to see how seemless the transition from a JC to your intended 4 year choice might be. Often schools have a few "pipeline" JC's that feed them. Both academically and baseball wise. If you choose and intended 4 year often the coaching staff can suggest a good list of JC's whose coaches and programs and players they respect.