Relative to other pines and evergreens that are commonly grown as living Christmas trees, the uncommon and even rare Austrian pine, Pinus nigra, would be a better option. If it gets planted too close to the home, as Christmas trees often do, it does not get big enough to cause major problems. Although much bigger in the wild, local trees may take decades to reach second story eaves.
The species is divided into two subspecie, which are each divided into three regional varieties, which is a fancy way of saying that individual trees may have distinct personalities. Generally, they resemble Japanese black pine, with similar irregular branch structure, but are more dense, and may get a few pendulous stems with age. The dark green needles are slightly shorter and stouter.
The Austrian pine was likely named as such when much of its natural range was still within the Austro-Hungarian Empire, which has since been subdivided into the countries east of the Adriatic Sea. Other larger parts of the range are in Turkey and Spain. Only a small colony lives within Austria, west of Vienna. Austrian pine likes full sun and warmth like it would get naturally back home.