Does he have any preferences for school size? Since he’s unsure of what his major will be maybe best to go to a school with a wide variety of majors?
Santa Clara, U San Diego, and LMU came to mind. USD has a beautiful campus. He probably would be competitive for high amount of merit. I see a lot of Cali parents looking at the Arizona schools. Otherwise going to UC school sounds good even if you go the CC route first. All of them are ranked.