Our surname is SO hard to find names that work - everything ends up sounding really sibilant or as though there is a glottal stop.
I also prefer mainstream traditional names rather than anything too unusual or 'trendy'. I already have a son called Joe.
For a girl I'd like either Olivia, Eva, Rachel, Rebecca or Anna. Although - is Eva too popular now or is it classic enough? And would Anna sound odd with a brother called Joe? Ie Joe and Anna sounds like Joanna!
Or for a boy I like Tom, Samuel, Daniel. I also do like Harry and Charlie but they've been done to death a bit.
Any more ideas from you lovely ladies?