Coins to mine with raspberry pi's?

[adamantasaurus]

Hey all so I have some raspberry pi's just laying around collecting dust so I'm thinking of mining some coins with them but can't really figure out which ones would be worth it, I'm not really looking into dollar value but the amount of coins I can mine IDC about the cost at all would it even be possible to mine a decent amount of coins with 2 raspberry pis?
Thanks