plenty of trading events out there usually you can claim some USDT by reaching certain trading volume, don't know if future trade also counted but if it is, might be a good opportunity of you, one example of exchange that keep having that kind of even is bybit, maybe kucoin as well as far as I remember, but there's this one requirement that usually become such a let down, the event only available for new registered account meaning their sole purpose of having the event in the first place is to attract new member, not because they really want to make an event.

everywhere it's like this, increasing customer base number is their ulterior motive behind every event.