Never have I seen recently a project which airdropped a coin that gained value. Most of them are just created for fun, scammers, or those without a future. Continuing this kind of path is just a waste of energy and effort and you are wide open for an attack. I would not recommend it anymore and it's a pain in the ass finding where those airdrops came from.
People made hundreds of dollars by just retweeting something, and that's per month, not per project. I highly recommend staying away from them right now because that really doesn't mean that it could work very well for a while, it is going to end up with being something quite terrible in the short period of time, but that doesn't mean that we are going to end up with a good profit today, we need to wait for the bull.