The max you will get in a genuine airdrop is $5. Unfortunately that amount has now reduced a lot because of the current state of crypto market . It is better to concentrate on genuine Bounty projects than airdrops. I personally prefer signature bounty above all kind of bounties.
5$ is really a great income for an airdrop. I have been involved in bounty for months and only received 20$ for the whole job. I hope airdrop and bounty can return like 2017, a lot of people have become rich towards it.