
If I was you I'd be calling her breeder. They would be the best people to suggest a suitable mate for your girl. They would know the lines, the type, and be able to give you help and advice on the whole process.
Next stop would be the breed club. Are you a member? Always an excellent place to start.
After that, I would be attending as many shows as possible, to see the dogs in person, and getting an appreciation of what makes a "good dog".
Oh, not to forget, that many puppies are sold with endorsements on their registration. Please make sure this isn't in place. If it is, her breeder is the only one who can "lift" the endorsement.