Go to
http://www.unitedyorkierescue.org and fill out an application. I have friends here in CA. who are foster parents and they sometimes have dogs.
Also petfinder has a few listed in CA. There are three really cute little females, Tabitha 5 pound young, Petunia 2 yr. female and Carmen 1 yr. small female.
http://search.petfinder.com/search/search.cgi