I would actually love to use the Spanish name
Mercedes, which means "mercy," but the problem is, people today would mostly think it was the car, and they'd think it was tacky. So I would definitely consider using
Mercy.
Mercy ArielleMercy AthenaMercy FelicityMercy GraceMercy HelenaMercy ImogenMercy OliviaMercy PersephoneMercy SavannahMercy SimoneMercy Tabitha
Of course, any of those can be switched around. Like any? They're all from your list, but I can add some more later if you want.
Jack Tobias / Jack Aubrey & Charlotte Arabella
"You may say that I'm a dreamer,
But I'm not the only one."