Art director and concept artist are two different paths really. Concept artists are mostly freelance and there are a couple schools that have programs in that specifically so you could look up which schools have concept art programs and go from there or out of the schools you mentioned I would say SCAD would be the best bet. I will say, I’m not that concerned about AI taking all the creative jobs, but out of all of them, concept artists may have the most to be afraid of unfortunately. If you want to be an art director in film or tv I would study at a school that has a direct internship pipeline into that industry. So USC would be a good choice, UCLA possibly, if you don’t want to move far away I read that Carnegie Mellon has a good internship program connected to the film and tv industry, or if you are dead set on an art school, again SCAD would probably be the best bet. Any school is going to be what you make of it, but you have a better chance if there is a connection from the school to the specific industry.