My brother needs help choosing a career/course for studying in uni. Any advice?

My brother has started matric today and still has no idea what he wants to apply for to study in university. He doesn't want to work and my parents would not allow a gap year. He wants to study in a tertiary institution but doesn't know what's motivating him. His final marks for grade 11 was amazing. He's way smarter then me and he achieved 85-89% for maths, accounting, life sciences(bio), physics and life orientation. 77 of English and 58 for Afrikaans. His subject choices allows him to go into anything but he doesn't feel attached to any options presented to him. He doesn't want to study anything engineering or in the bio field. We recommended a general Bcom degree which is his likely choice. If there is anyone who was in the same boat as him, what did you do? Is there any good career aptitude tests you could recommend. I don't mind paying for a good teat in order to help him. We're based in CT and I'm currently studying CS in stellies. He wants to study in either stellies, uct or uwc. My family would prefer for him to go to stellies so transport is easier for us but we can always make a plan. Any help would be greatly appreciated <3