
I suggest you read the first post on the breeding board about using a pet dog at stud.
As archer has pointed out you have left it rather late, as he may not know what to do even if he got the opportunity.
He would need to first have his Hips X-rayed and plates sent off for scoring. He would also have to be heart tested by a specialist cardiologist, and nay murmer graded, with grade 0 or 1 only acceptable for breeding.
I think your best bet, as you are so pleased with him is to go back to his breeder or the breeder of his sire, and get a related one. they will have the knowledge to have continued the good work evident in your boy.
The other thing is bitch breeders will be looking for the best dog to complement their bitch, and they will be doing this by watching the males in the show ring and comparing them, and their offspring. Unless your boy is shown no=one will know of him or be able to assess his qualities against his rivals.