If i was you, i'd look at your local humane society, spca, or whatever type of adoption place you have near you. You're bound to find something that will fit your schedual. They normally come on their info sheet how muhc they are used to being left alone on an average day. You can find mixed breed dogs, as well as pure breed. Just look at it this way, you'll save a life at the same time you're getting a life-long companion.