On our tour of URI they said that some kids are volunteers with local FD. UMass Amherst also has some sort of involvement with FD, too. Franklin Pierce (small uni in NH) school has FD connections..
Many (most?) of the schools my kid looked at had some sort of student-involved medical EMS, it is a lot less rare than I thought. Official FD connections were fewer. UVM has a EMS minor and since their hospital is literally on campus, I have heard a pretty robuts student-EMS service. Emergency Medical Services Minor | Rehabilitation and Movement Science | The University of Vermont