I want to get a dog but I have to work, how does everyone on broadway market do it ?

Rescue?

I know morally it's the right thing to do, but having wanted a dog for years I'm keen to have the whole puppy experience + get it used to the children from the start, etc, etc.
Obviously if it was possible to get an 8ish week old rescue puppy I would, but am assuming that isn't easy.