This is such a great topic!

Do you know about the fanfic based on A Companion To Wolves? There's a whole lot of psychic wolf AUs of fandoms that did not previously have psychic wolves. dira started it with a Gen Kill series in which carefully bred wolves are part of the modern-day Marines, and it spread from there to Wooster, Sherlock Holmes, Slings and Arrows and all sorts of things. petra made a fest for it.