Bounties and signature campaigns are proficient ways to earn in my opinion. Although bounties
tend to release tokens longer but they are worthy investments. Airdrops are free, so with that
on mind there's really nothing wrong trying it out. Signature campaigns are the best, it's weekly
pay and it's very manageable. All of them are really good ways to earn, to me the best would
be to try them all and see how much you can earn out of them. The more the options the better
the chances of earning.