Is your dog titled? Is he a working dog?
Your best chance of gaining knowledge and connections is thru your male's breeder or thru a sport club.
There are a lot of great dogs out there that are proven thru work or sport so the chances of you finding a good female to compliment your dog and maintain the breed standard is going to be nada if all you have is a great pedigree.
~The strength of one's opinion should not exceed their knowledge on the matter~