Flowering pear trees offer attractive spring blossom, and usually good autumn colour, and are easy to grow.
Chanticleer is a form of the Callery Pear, with attractive spring blossom and autumn colours.
The Himalayan Pear - an attractive small ornamental pear tree, notable for its fiery autumn leaf colours.
Flowering pear trees are a good choice if you are looking for something a bit different. They usually flower quite early in the spring when not much else is around, whilst in autumn they have ornamental fruits (often liked by birds) and interesting foliage colours.
Flowering pear trees are also usually easy to grow, disease-resistant, and tolerant of almost any soil conditions.