
I would suggest contacting your dogs breeders for a new pup.
If they no longer breed they will no doubt be able to recomend you to a reputable breeder to go on their waiting list.
This will be an advantage to you as the breed people will be taking especial care to weed out unsuitable potential owners who are interested in the breed only because of one having won at Crufts this year.
You may have a while to wait as the bred has small litters, and the number bred each year is relatively small.
Good luck.