I found a similar site like the one you shared, and my expectation of airdrops that have been categorized as potential airdrops, it remains low... I can't convince myself to use their opinion as a reference, yes that's because airdrops still rely on luck as well... as long as the coin is not listed and has transaction volume... we can't be sure it's a good airdrop or not..
To see the best airdrop opportunities right now, all I do is imitate those who are too often successful with airdrops. Doing what they do, the concept is still imitating because I don't really understand the world of airdrops well at this time.