dane x mastiff pups

We currently have 10 puppies from a litter of 13 available, we have 7 girls and 3 boys, that are perfectly mannered with other dogs, they are good with cats and kids.
Ideally, we are looking for owners that understand large breeds dogs and their needs. We would like to see these pup go into active family who will take them on walk continued training and also socialising our pups