As you recommended, I try open account with bitfinex and here what they said below. Is there any other platform you will direct me?

Thank you for your interest in opening a Bitfinex account. However, due to extraordinary demand, new account creation has been temporarily paused.

Bitfinex focuses on serving professional traders. The reason we have decided to temporarily stop accepting new accounts is that we cannot undermine the quality of our services for our existing traders by flooding the system with new, small accounts.

Please be patient while we expand infrastructure, services, and staff to meet the exponential rise in demand for new Bitfinex accounts.