What testing have you had done on your young male? Not just a vet health check. What show wins does he had (Championship?) because if he was a suitable, outstanding and typical example of his breed, you would have exhibitors/owners with a bitch of an equally impressive background lining up to use him, not having to advertise him on here.
Please think long and hard about allowing this because not only will he be looking for the next bitch to mate with which probably won't be there, he may perhaps become a nuisance as he starts lifting his leg around your place. Do you have enough knowledge of the breed and what's on his pedigree, to be able to decide whether any bitch who is presented for him to mate with, is likely to be a good nick. Bearing in mind, by experience, it's all too often the stud dog who is blamed if things go wrong!
If he is an outstanding example of the breed - have you taken the advice of his breeder who, if he is all that, might be interested in using him herself on one of her bitches. Which frankly, I doubt or she'd have retained stud rights on him!
I had a couple of males I'd bred, at public stud but turned away more enquiries than I agreed to, simply because I knew a mating wasn't right for either of my boys.