On the West Coast, Claremont McKenna has a 3+2 program (not sure Pomona has one, as posted above). cal poly slo also has several dual degree programs.
But, combining this with baseball Others on this site say it can be done. We met with the admissions officers of 3 schools who told my son no way, no how (or at least until they invent a clock with more than 24 hrs. in the day).