I participated many airdrops and recently find another good way to earn some Ether. It's called "order-mining", a campaign held by a DEX named JOYSO. The concept is still new, I think I never saw other people done this before. The way to participate is simple, just place some buy or sell orders, and wait for the scores coming in, totally need to do nothing. Only be aware that your order may be matched by others, then you'll get nothing to earn.
The way to earn higher score is to place the orders for a longer time or stay closer to the market price. Though you can only redeem the tokens issued by the exchange. But you can just sell it for Eth on the DEX. I participated several days ago, using 5 Eth to do the order mining. Now I already earn some ETH and waits for the bull run
So here clearly we need to work in every category of this field , for example as you suggested that you are working to get tokens in the airdrop .
So here I would like to say that we should work in another platfroms like advertisement bounty platforms where we can make better amount of the earnings of the tokens and we can sell them easily without the launch of the token as a coin at an exchange .
Most popular exchange that I heard for the tokens buy sell is at the Dex.top exchange ( etherium and erc20 tokens with tokens at low price ) .
So take hardwork in almost all of the very platform whether that is Bounty of airdrop or social media sharing platform , just make collection of the tokens and coins .
But with that I will be mostly remain that we hold them for profit purpose because many times a small tokens results into high profit becatof better team work after the end of the ICO .
In this present time dump of the market is a big tension for everyone and I think we should just hold our asset and do work as much we can because there is no option .