The HiG website used to host a lot of fan expansions and variants. You should be able to find those somewhere. That was before their latest redesign, and before the one before that.
IIRC someone on CarcF was in touch with Kevin Graham about his expansions with a view to them also being hosted at CarcF.
Started by Le Merlin Fou
Started by nblack27
Started by Ted649
Started by aenima
Started by Elfew