What happens next?

How to become a dog breeder
Decide what breed you will specialize in.
Reputable dog breeders don't breed a variety of dogs. They specialize in one, or maybe two, breeds of dogs.
You may have a breed in mind that you particularly love, or you may need to spend some time considering which breed would be best for you. Account for their personalities and temperaments as well as the space you'll need to house the breed depending on their size.