Based on my experienced bounty is the most profitable signature and translation campaign are the most rewarded campaign, I can easily earn $500 to $100o on one campaign alone and it will only take 2 to 3 months the biggest airdrops I received was $50 and I have to wait for 6 months before I can trade that airdrop if you want to participate on airdrop you need to join many airdrops to make a profit.