If he takes physics courses at a college, he should take the courses for physics majors. Some colleges may have honors physics courses as well.
However, even in that case, he should be aware that different schools’ physics departments may cover topics in different orders, so that physics courses may not be direct matches to those at another school.
AP physics C is not as math intensive as college physics for physics majors, since multivariable calculus tends to be used in the E&M part of the latter.
However, courses in some of those other related subjects (e.g. engineering, geology) may have physics prerequisites.