dog safety

I would love to have our own dog. I grew up with lots of dogs and now that I'm married I would love to have our own. I know there are a lot of responsibilities that go with having a dog. We might even have to get a sport dog fence to make sure to keep him safe at home. We wouldn't want him running outside and get lost in the neighborhood. I wonder what kind of dog we can get. I hope Dagny also grows up loving dogs.