Oh what a question to ask HERE... Be ready for the usual sermons and admonishments about selfcustody, non-KYC, P2P, Armstrong's bald head and CZ's evil master plan...
The real answer though is, if you have access to it, Binance dot com (not US). But really, just whatever.
That said, once you've done the deed do withdraw and rinse those dirty KYC sats...