I recently built a new house on a piece of ground that was previously farmland. We have 2.5 acres. Currently, I have 10 Norway Spruce around the outer edge. All are about 1-2 feet tall. So far, I have an Autumn Blaze Maple, Prairiefire crabapple, and another crabapple with white flowers. I have a lot of room to fill and was looking for some nice Shade Trees. Any suggestions?

Also, my dog took apart the white flowering crabapple last fall, literally tearing it limb from limb while I was gone to work. All that is left is about a 2.5 foot trunk with about 4 stub limbs sticking out, none more than six inches. To my surprise, there are about 6 clusters of leaves starting to form. There are also a bunch of suckers coming up next to the trunk. This tells me the tree is obviously alive. What should I do with it?

All help is appreciated, I am on the bottom side of amateur.