Finish the sibset!

What would be a good boys name to finish this sibset:
[name_f]Sophie[/name_f] [name_u]Bliss[/name_u] and [name_u]Sasha[/name_u] [name_u]Fable[/name_u] (both girls)
I would like to keep with the ‘S’ theme if possible.
Thanks!

[name_m]Stellan[/name_m] [name_u]Grey[/name_u]
[name_m]Soren[/name_m] [name_u]Frost[/name_u]
[name_m]Stefan[/name_m] [name_m]Atlas[/name_m]
[name_m]Sebastian[/name_m] [name_m]Noble[/name_m]
[name_m]Silas[/name_m] [name_m]Heron[/name_m]
[name_u]Sterling[/name_u] [name_u]Bay[/name_u]
[name_u]Sullivan[/name_u] [name_m]Forest[/name_m]

First thought was [name_m]Soren[/name_m].

[name_f]Sophie[/name_f] [name_u]Bliss[/name_u], [name_u]Sasha[/name_u] [name_u]Fable[/name_u] and:

[name_u]Sander[/name_u] [name_u]Grey[/name_u] (alt. [name_m]Sandor[/name_m] [name_u]Grey[/name_u])
[name_u]Sawyer[/name_u] [name_u]Bay[/name_u]
[name_u]Salem[/name_u] [name_u]Oak[/name_u]
[name_u]Shiloh[/name_u] [name_m]Cove[/name_m]

[name_f]Sylvie[/name_f] or [name_f]Sylvia[/name_f]

[name_f]Sophie[/name_f] [name_u]Bliss[/name_u], [name_u]Sasha[/name_u] [name_u]Fable[/name_u], and _____ ______~
[name_m]Stetson[/name_m]
[name_u]Seth[/name_u]
[name_m]Santiago[/name_m]
[name_m]Santos[/name_m]
[name_m]Samuel[/name_m]

Middle name ideas…
[name_m]Aries[/name_m]
[name_m]Malachi[/name_m]
[name_u]Phoenix[/name_u]
[name_u]Justice[/name_u]
Merit
[name_m]Marshall[/name_m]
[name_m]Fletcher[/name_m]

[name_f]Sophie[/name_f] [name_u]Bliss[/name_u], [name_u]Sasha[/name_u] [name_u]Fable[/name_u], and…

[name_m]Samuel[/name_m] [name_u]Legend[/name_u]
[name_u]Seth[/name_u] [name_u]Corbin[/name_u]
[name_u]Sage[/name_u] [name_m]Caspian[/name_m]
[name_u]Sullivan[/name_u] [name_m]George[/name_m]