Here is one for Amplify Exchange.
Around $50 in airdrop with the potential to earn more with other referrals that signup. You can then earn even more when they do their first trade.
I think its 500 AMPX for your early signup. 100 AMPX for every referral and 500 AMPX for every referral that makes a trade.
https://app.amplifyexchange.com/register?ref=322510