Gemini, a US-based cryptocurrency exchange specifically in New York City, has been operating since 2015, became Ethereum's first exchange with world licenses in 2016
Its commission per manufacturer starts at 0.25% for the policyholder, it depends on the amount of exchanges that are made.
Its system makes it reliable and safe for users, but it has a limited list of countries available for exchanges.
It's really impressive that they don't charge anything to make deposits and withdrawals on the website They make it clear that they do not bear bank charges but do not charge any transaction that enters or leaves the platform.