Bitmax came into the spotlight in 2018, it has done incredibly well over the past 3 years, it has been rated as one of the top exchanges and top liquidity providers with absolutely excellent trade features. It allows margin trading of up to 10x for almost 40 different currencies, I have made some margin trade on the exchange's margin and it all went well although I also made some minor losses as well. It has a good trade view from my perspective, it is equipped with the essential indicators I need in carrying out suitable research before trading or entering a buy long or sell short position.
Anyone is free to use the wallet but I am not so sure U.S investors can trade on the exchange but perhaps you a U.S investor/trader you can check out the exchange yourself.