To be honest I only heard about FTX after they partnered with Esports organisation, TSM. Before that I didn’t know that any exchange named with FTX existed.
If you listen to me OP, then I would suggest you to go with KuCoin. The main reason for it is due to the existence in the market for a longer period of time.
I have also heard that people says after Binance Kucoin is the best exchange for crypto.
If possible OP, give a shot to Binance also, and I am sure you won’t regret it.
Rest is up to you to choose which exchange you will use for trading.