We already have an Esmé and DH has rejected Elijah, Elise and Eliza off my list as sounding too similar.
Other names we both like are
Nancy, Thea, Martha and Sadie for a girl. Seth, Nathaniel (Nate for short) or Theo for a boy. But we don't love any of them like we do the name Esmé.
Any suggestions would be very welcome.