I usually do trading/shorting on some coins I feel confident about it and just long term trading. The long term should be doable to anyone, just that as the name suggests, it's for the long term. Should be pretty safe though and if you time it generally you'd be able to get at least 50% profit imo. Shorting is just as it is, up to you what you want to short. I recently got lucky with meme coins a few weeks ago but wouldn't really recommend it as one you'd want to short.

Airdrops give you close to useless stuff nowadays,  not really worth the time and effort given but if you have nothing then it might be worth it I guess? Probably better to just get some random beer money jobs(not crypto) imo.  As for staking, I just generally avoid it. Not worth risking my coins for.