Hello, I'm not sure if I have put this in the right place, if not I apologise!

I am trying to find a responsible breeder for Chihuahua's, its so difficult to find breeders who are interested in breeding healthy dogs and not purely to make money from it.

Does anyone know of any? I have done an internet search and managed to find 2 but somethings mentioned on one as signs of being a bad breeder are on another one about them so now I don't know who to trust. Does anyone have any advice?
Thanks
Sarah