The security of the exchange should be your top priority when choosing. There is always a risk of losing money due to one or another hacker attack. Keeping your money on the exchange means trusting it to someone else, so think at least about how long the exchange has been around, how many clients it has, and whether there are any security issues. For a simple exchange of cryptocurrencies, you can choose the crypto exchanger trustchange, this is the most profitable way and at the same time safe.