If you want something tall and narrow, go with Straight Talk Privet. Distylium is a good option for a rounded evergreen in a variety of mature sizes. Cinnamon Girl matures just 2-3’ x 3-4’. I wouldn’t rule out an azalea. Evermore Hot Pink and Orange flower in the spring and again late summer into fall. They mature 3-4’ x 3-4’.
Thanks for writing!