Just my two cents from my experience with airdrop farming — I skip free points farming stuff (current examples; Rabby, Rainbow wallet points farming programs and everything on platforms like zealy, questn, galxe) as in the end reward usually tend to be worth peanuts, that too if any.
Effort involved vs reward ratio is simply not alluring enough to bother.
If that's the case, what types of airdrops are you joining then?
Testnet airdrops? Staking to be eligible to an airdrop? Buying an NFT?
I don't buy NFTs from marketplaces but mint them if mint is free or for a very low fee, if project becomes successful these early minted NFTs tend to be valued good as the case with Mode network nfts.
I like airdrops which has little effort involved and there is less risk to money used to farm.
So parking money is one I do. You park money, and let it do the work; examples being — Eigenlayer, Mode, Parcl, Swell. Yes, aforementioned three had point system, but it's different from farming points for doing tasks, anything 'free' is likely to be over saturated and in the end reward won't be worth good.
You don't have to be whale, even few hundred dollars can make you earn good, and nothing happens to your money that you parked (as long as you stay away from shady projects), when the farming is done, you withdraw.
You could also stake coins that has potential to make you eligible for other airdrops, like $ATOM, $OSMO, $PYTH, $TIA, $DYM.
It's wise to stake part of airdrop you receive, as this could make you eligible for other airdrops.
Example; Stakers of $ATOM got $TIA, then $TIA stakers got $DYM, and $DYM stakers got $NIM.
Regarding testnets, I do them if I find project attractive enough as in case of Initia lately.