Coinbase is the best exchange.
Almost everyone said that changelly is a scam exchange.
Bittrex last year could not have a bitlicence in newyork.
Binance needs transparency , noone know where this exchange is realy based .
But Coinbase cannot be used by everyone in the crypto market. They only use it for Americans and some countries where Coinbase is based. In addition, if we are found to use fake IP, our account will be locked and our money will be lost forever. There will be no reports or any help from them! Therefore, from now on, non-US citizens should stay away from Coinbase. We have better exchanges, namely Binance, Huobi Global. They have huge reserve funds and transaction fees are quite cheap and we have many options when trading.