Coinmarketcap often lists all the major events in the crypto and...

Coinmarketcap often lists all the major events in the crypto and blockchain space, reward programs, event updates and moreA number of private run blogs too have been on top of the game in highlighting crypto competitions, including airdrops, giveaways, retrodrops, contests, etc. You could look them up.

There were recent 100% guaranteed reward draws announced by platforms like Bitget, I guess other crypto platforms have something new they put up periodically to engage both new and their existing users.