Helen Lysandra comes to mind, if I'm in a midsummer mood.
Helen is not nearly as nice as
Helena, but has a pleasant sound and I enjoy the mythological association.
Margaret feels too closely tied with
Thatcher, and it reminds me of shortbreads and carpeted kitchens.
Susan is nice and solid.
Deborah is dowdy and sounds like a tired housewife.
masculine list:
https://www.behindthename.com/pnl/191050/124079feminine list:
https://www.behindthename.com/pnl/191050/124080