I've been thinking about
Eileen a lot lately. I love its staid, understated beauty and its elegant simplicity. It feels a little "pedestrian" to me (whatever that means), but I still find it quite charming.
It's fun pairing it with a jaunty, buoyant middle name, e.g.:
Eileen ZoeEileen RubyEileen SadieEileen XantheEileen JunoEileen SylvieEileen ChloeEileen OpalEileen Viva
Eileen TansyEileen Daphne Eileen Greta Eileen Willa