I've got 8 puppies and I want them to come back to the dog pen, which is where I'm going to break them from. Any tips to get them to come back?

I have best results by raising the pups on yard and leaving them on yard if you are able to do that at your pens.

While they are young walk them away from the pen and back leave a couple of them out at a time
What seems to help more than anything is if there Breed to come home and it didn't hurt if they're a little bit wild