I've tended to find codes for filelinked codes while watching youtube videos, but I've no doubt a search will find actual pages for codes. I have a couple of good ones if you need them and I think @Joe Noodles has posted a few on here @melttc.
Here's the link Joe started, it says Droid Admin codes but that is just what Filelinked used to be called. DroidAdmin Codes, these last few posts could do with moving to Joe's thread as this is related to his thread rather than Teatv.