Anything that goes really, on our list we've had:
Hillary
Zahli
Kaylee

So not terribly unusual names, but ones you wouldnt hear everyday.
I can see what you mean with the three names together yeh it's having to say so many names sounding like ' S ' (and what a shame as Selara, sounds so pretty)

... really like Zahli of your three names there

Seeing i'm your P.I.G don't know whether it's too much for you if i put a few names here but yeh i will just do it anyway in case there might be something you like or like similar (me too like unusual names but not whacky, lol)

Adele
Alana
Ariane
Ashmita
Breeana
Corrine
Erin
Lorinda
Lyla
Tess
Terese
Trelise