Szayden.
Sergio
Santos
Sage
Spencer
Santiago
Saul
S names are difficult to find
Sebastia is cute , sam , stevie, Santiago
Sadon Simpson Sargeo Sergei
Awe sebastian! That will be my baby's name nickname
Simione(sim), seth, scott
Seth, Samuel, Sawyer, Sloane, Steven/Stephen, Saul, Solomon - to name a few.
Santiago, Sandro, Sergio, Saul, Salomon. Those are the ones I think of. Hope it helps.
Sammy,Shawn,Shontrell,Solomon,Shane
Here's some more S (I'm assuming you are having a boy based on the names you gave) : Samuel, Samson, Stanley, Simeon, Simon, Sven, Sean (Shawn), Seamus, Steven (Stephen), :-)