Linda, although I don't know any breeders in Arizona, I do want to express my condolenses for you losing your corgi. I can't imagine how tough it is.
If you go to
http://www.pembrokecorgi.org/
and click on members/breeders, you can type in your state to get a list of breeders that may have puppies.
Good luck with your search and welcome to GoCorgi!
Jeni