A very interesting question. Having the money available in 10 years time is probably what needs major consideration.
Equities generally grow over time, but go up and down, and may be down or lower in 10 years time. Property (land, condo, rental property etc) is all likely to appreciate, but selling is not always easy. Gold used to be considered a good investment, easily bought and sold, but over recent years has hardly moved in price. Adam (where is he when you need him?) would probably put forward a case for Bitcoins and the like, but most of us know very little about that
As a coincidence,my 2nd daughter (I have 3) only yesterday signed a contract on an up-market condo in Sri Racha, opposite the University, and in the area being promoted by the Thai government as the Eastern Seaboard economic corridor.. The condo will be rented out (rental income will pay the mortgage), and the value should go up. But as said above, when it comes time to sell, how easy will it be? She is looking more long term than 10 years.