Middle name help.

Molly • Pregnant with baby number 3, with my husband, who I've been with for 6 years. We have 2 sons ages 4 and 2. We're so excited to be welcoming another baby! Due late september!
Looking for a middle name to go with Lucian, we were thinking Xavier, but I'm second guessing it now, and thinking something a little more traditional sounding, any suggestions?