Binance frequently hosts many trading events. The latest of which was this: https://www.binance.com/en/market-activity/305a45fc48c448bd885ed4a7178fe9d4 You can earn a portion of the prizepool by completing simple tasks such as using Binance earn,P2P, etc.

If you want, you can open a Binance account so you will get notified when a contest starts.