There are several platforms I use to trade crypto.
Binance and Indodax have been my place of crypto trading all along. There is another one that I use, namely FTX Exchange.
If you are from Indonesia, you should also try the Tokocrypto exchange, which is also very comfortable to use and has a large selection of good coins there too.
So far, Indodax has looked good, but in my opinion, Tokocrypto is much better with support from Binance, so there's no need to hesitate to use it for a long time.