Your question here is a bit unspecific. Where does the best of a trading platform refer to what you are looking for or asking? Even if we say that what you want to know is the
exchange that is best for you, I think a trading platform is useless if you don't have enough knowledge of trading.

Because trading is a broad matter, and I think you know that and have an idea about it. Do you know anything about trading specifically here in the crypto space?
Actually, there are several best exchange now here in the crypto space just type in the google best exchange in cryptocurrency then it will appear in your monitor at once the options
for this matter.