He’s plenty young enough for anything you might want to try. Nose work sounds like a good fit. He might also enjoy tracking but it’s harder to train because you need helpers and grounds, but if you can find a tracking club near you it might be worth a go. Also, even if no one in your family hunts, you could still train him for hunt tests. I know lots of people who do hunt tests with their dogs (Labs, GSP’s, etc) that don’t actually hunt.
Nose work is probably the easiest in terms of getting into it, so maybe start there?