HI, welcome to Dobermantalk from Colorado!
Like Fitzmar said above, it takes a lot of work and time to get to the point where you're ready to breed a dog responsibly.
Here are a couple of threads about what it takes to be considered a reputable breeder-- https://www.dobermantalk.com/breedin...e-breeder.html https://www.dobermantalk.com/breedin...-question.html
And one from the DPCA website that talks about the kinds of costs you need to consider when you breed your dogs, with a sort of spreadsheet so you can calculate what you should expect to spend. A lot of people don't necessarily understand how much it can cost to breed dogs if you are breeding responsibly. DPCA | The Doberman | Cost of a Litter
As you will notice as you read them, the subject can be quite contentious. But reading through these threads, arguments and all, should give you an idea of the standards and qualifications we expect breeders to have before they can be called responsible or reputable.
But asking questions and reading the answers are how we all learn, so don't be afraid to jump right in and fire away. Glad you're here looking for info.