Flowering trees

My step daughter gave us a lilac tree last spring and we planted it on the side of our house. They're doing well and I think the shade helped the plant to develop vigorously and have beautiful flowers in them. I loved the smell of its flowers. Since we don't have much Flowering trees in our yard, we thought of starting to look for some nice flowering trees on spring that we could plant and grow on our sandy yard to enhance the beauty of our surroundings.