What should I name my next baby?

I already have 2 children. My first born is named Zander Ashton, my second is Zayden Anthony, now we going to have another. I want to keep with the Z. A. but am having a little bit of troble. So far what I like is Zaylah Alexis for the girl and Zavier Alec for the boy. Do you have any other suggestions?