How to choose a crypto exchange?

Hello, for those who do not want to bother with the plant of funds for exchange on the crypto exchange, there is an alternative - electronic exchange offices of cryptocurrencies, often called simply "crypto exchangers". Such a crypto exchanger is a site on which the software allows you to choose one or another direction of exchange and make a purchase or sale of cryptocurrency in automatic (if such an exchange method is provided and configured) or manual mode (with the participation of the operator).