I haven't personally tried Singapore Media Academy with my kids, but a friend did send her son there for a media and presenting course and she said the instructors were experienced and her son came back more confident on camera, which was the main thing she wanted. That said, it's worth also looking at school drama clubs or community centre speech and drama programmes first to see if he really sticks with the interest before committing to a more specialised academy. If he is serious, then something more focused like Singapore Media Academy could be a good next step lah.