Can’t think of a girls name 😩

I don’t know why it’s so hard! For baby boy we knew his name before we found out the gender. He was just Jack from the start. Now we’re having a little girl and we cannot for the life of us find her name, I’m convinced I just haven’t heard it yet if that makes sense, so I need help! What would be a cute little girl name to go with brothers name Jack? We like more traditional names. When I picture her I think of a strong willed young lady and I just need a name that suits her!