Pick a good unit trust that has excellent returns for more than 10 years. Compare some Corononation, Alan Grey, Nedbank, etc funds that are heavy in equity.
Pension compliant funds can only have a max of 75% equity generally so a little less risky but decent returns. I have a split between Alan Grey Global Balanced (5Y return 14.7%), Coronation Global Balanced segregated portfolio (5Y return 17.6%) and Investec Balanced (5Y return 15.4%).
If you look at the 100% equity funds the returns can be better. I like Nedbank Rainmaker and a few others but am not in them as for now I keep spare cash in the bond rather. Still, this is just an indication, not trying to make you join a specific fund.
Also be careful of financial advisors. The info they give on fund performance can be found easily via google and if you do go via them they will take an up front fee (generally around 5%) and then ongoing fees for as long as you have the product. Try to invest yourself without the expensive fees if you can.