If you have a bitch, and she has good conformation, temperament, is titled, her x-rays check out, you can evaluate her pedigree and her structure and determine in what lines to look for an appropriate male, and then what attributes the best male for your female will be.
Males can be used for multiple breedings. He might breed 10, 15, 20, or more bitches in a year's time. I bitch breeds to one, maybe two dogs in a year's time. Therefore bitch owners are going to be very choosy. Well, at least the good girls' owners will be very choosy. They can afford to be. They can get sperm from a top quality stud dog for the price of a puppy or less. It is one of those things that you don't just choose the boy down the road because his stud fee is cheaper, or even free.
If you really want to breed your boy therefore, you have to prove that he is exceptional. How do you do that? Well, you start by getting him out there where the serious people are training, and trialing, and showing their dogs. Get him titled. Get multiple titles. There is no biological clock ticking on your boy, just rack up the titles.
If your dog is truly special, bitch owners will look you up. And then you have to be careful. You will want for the bitch to be screened for hip and elbows, etc. You will need to require a brucellosis test. You will want to accept the bitch, her pedigree, structure and most importantly her temperament. A bitch with a poor temperament gives a pup a double whammie, and she bestows her genes on them, and then she imprints their behavior while she takes care of them in the whelping box. Do not be in such a hurry for pups, that you allow your dog to mate to the wrong bitch.
Heidi Ho, Odie
Joy-Joy, Bear Cub, Hepsi-Pepsi
Cujo2, Karma Chameleon
Ramona the Pest, Kojak -- who loves you baby?
Tiny Tinnie, Susie's Uzzi, Kaiah -- The Baby Monster.