What kind of 15" are you looking for lightweight or for looks. I know BBS makes some pretty sweet rims but they're $$$$ (BBS RG-F, or BBS RS are my favorites). Rota makes the slipstream which I think is pretty nice. Or you could just get Euro Weaves, or Ronal Turbos. If you go to VW Vortex theres a ton of nice wheels there in the classifieds, just look around and find some that you like.