AutoNitro
Easiest way to get nitro for free
AutoNitro is a tool which automatically redeems nitro gifts to an account whenever it is received on the client.
So if you wanted to use the tool you'd want to try to figure out what servers commonly post nitro codes, so you (with some help from AutoNitro) can be the first to redeem the gift.
You can get AutoNitro here: