Hello there.
I have a crazy amount of cloud servers with really powerful CPU's, and I was wondering if there is any way I can put them to work making me money. I don't have to pay anything for them, but I'd still like to be making around a half or third what the electricity costs the people running them. I won a bunch of credit on the site and I don't want to have to go to all the trouble of selling Minecraft servers or something like that.
Cheers.
I would suggest to mine some cryptonotes (e.g. Monero, Bytecoin, Ducknotes ...). See e.g.
Minergate (they also have profit calculator).