I wouldn't consider Drake Elms or Regal Prince Oaks small trees. Although Regal Prince has a columnar habit, it can get upwards of 50 feet. So can Drake Elms.
I love Drake elms, and I am always tempted to get a good sized one when I see them on clearance, but I have noticed that the leaves get bigger after a few years in-ground and the attraction for me is the little cute leaves. I see them in pots with cute little leaves less than an inch long, but they end up twice that in-ground.
After I stopped mowing my lawn Elms started popping up. At first I thought it was Chinese Elms because there are rows of those in the medians near here, but it didn't take long to realize they were American Elms. I hope they have some resistance to disease because I love how handsome they have developed in such a short time. Very straight trunks to about 10-12 feet then dense branching. Like these:
https://images.app.goo.gl/aNCmU2Co1JxHcPti9