Girl names...need help

Crystal
So we are dead set on a boy name and in love with it. But we are finding it difficult to set a girl name. I have two older children Caleb is 16 and Kadence is 12 and my fiancé has two girls Ava is 6 and Ella is 4. 
So I love unique names that have great meaning and vintage names also. Any suggestions? What is everyone naming their baby girl?