There are a lot of platforms out there and you just have to choose the one that suits you, some have higher exchange values and you get your money directly to your local banks while some you will have to go through an exchanger before you can get your money, but I personally I use luno and finance, I prefer luno more because it is user-friendly and has a lot of market you can trade on and you get paid directly into your local bank account without going through an exchanger.