Oak would be great, but it would be 15+ years before I see the benefit. I am unsure if I will be here that long.
Think long term, I'm gonna be here that long, and I'm old enough to be your Grandpa!
When I was a kid, my Dad took my brother and I up into the woods and we dug up small Maple, Oak and a Ash tree and planted them in the corner of our back yard for shade. I remember several people telling him that he would never live to see the shade, but they were wrong. It did not take that long.
Likewise, I transplanted a Norway Maple in my backyard several years ago (to provide some privacy), the tree is good size now, you won't move it again (w/o big equipment).