Help me pick a name!!

Hey everyone! I just found out I'm having a baby girl. I'm pretty set on a couple names, but everyone in my family has two middle names and it's a tradition I would like to continue.

I'm considering Serephina Genevieve ______ Lemaster. The blank being the undecided middle name lol. I know, it's a mouthful. I'd like to stick with the elegant/regal sounding cadence to the whole thing. Open to suggestions. Top few ideas right now are Elowan & Auriellaname