how lucky all people who joined airdrop program on august till december 2017 period, there's many legit airdrop. but now? you know the answer already 
There are still a lot of legit airdrops, but the only problem may be that they don’t give so much coins as before, this days before you receive more than 100 tokens, it’s so rare, even with the billion supply of these coins and nowadays the airdrops are mostly centered towards referrals, only those that can get reasonable amount of refs tend to get more coins.
there will still be some good airdrops from honest devs that aren't greedy and care about the community. Just be patient. Also I would ignore airdrops with ref links those are usually just scam Trash.
