Business ideas with R30k?

Managed to save R30k this year. Not a lot too many but I’m losing sleep trying to think of what to do with it. Option 1 is to spoil my parents or get myself a new high end PC.

My other thought is to do some sort of business but can’t quite put a finger on what exactly I should sell. Once did well importing stuff from China and reselling when I was a student but I’m not sure if it’s still a viable venture these days. So any ideas will be welcome.

Thank you