There were times, I remember late 2017 and early 2018 when airdrops really were worth something, when all projects just started with airdrops just to get more people involved in their project. Now these days airdrops aren't really worth much, and yeah who says they even should be worth some money because let's be hones you don't really have to do anything to get those tokens or coins. I stopped wasting my time on airdrops, but I heard that there were few good ones lately. I just don't know, then my telegram gets spammed from different projects that I don't even want to be part of, and just doesn't work for me anymore. So there really isn't and good or bad way, you just have to be lucky to find one airdrop that is worth something.