If it’s an undergrad school he likes, a 3+3 program could be fine even if he isn’t 100% sure; he could always change his major and just graduate with a bachelor’s degree.
Drexel’s program isn’t direct-entry, but they have a “bridge” program that might be particularly worth a look, because the co-op time might help him get clarity on his career path. Plus, they have a good variety of other health-related tracks, if he decides against PT. BS/DPT Bridge Program for Physical Therapy Option | College of Nursing and Health Professions | Drexel University And I think it’s realistic to hope for good merit there, with his stats. It’s a little larger than you’re looking for, but there may be enough partitions between divisions/programs to make it feel smaller.