Corath is a bit different from other deities, you can not suddenly realise that you are leaning towards his views, like you could do with Ilsare, Toran or Rofirein. Corath is frowned upon by the majority of Layo population and his followers are not numerous or really telling everybody of their deity. So I suggest contacting the existing followers of Corath.
It may be hard though, since most of them are online rarely these days, so if you cant find anybody, you could contact me with a PM or a letter and we could work something out.