Café de Nuit

which of the classes in tome of magic w/could be used in gothic earth?

The elementalists probably work the best, as many mythologies and cultures place a lot of emphasis on the four elements and how they're used. In particular, theming them around alchemy should work quite well, especially since the creation of the philosopher's stone is detailed in the Tome of Magic. There was an article in one of the Book of S____ from the Kargatane that gave further details, although off the top of my head I don't remember which one - maybe it was Sorrows or Secrets?