Change high school in Senior year

A student with a 3.0 is better off with slightly less rigor and a higher GPA for the colleges he’s likely to target/ competitive for, as long as his full schedule isn’t 3 core classes at CP level and four electives “with little to no homework, done in class” (say, horticulture, culinary arts, current events, theater tech - excellent classes, all of which he could pick from for one or two classes…but nomore than 1-2).
He should have 5 core classes, some CP, some honors/AP, + electives.
What major is he thinking of?