@hightower Nathan, Nicholas, Samuel, Sean, Stephen. Boys names beginning with K are tricky as they either sound old - Kevin, Keith, Kenneth - or trendy/tacky like Kai, Kaiden, Kenzie etc. There's Kieran I guess.
Natalie, Natasha, Nellie, Nella, Nina, Nadine, Nora(h), Noreen, Nanette, Naomi, Sylvia, Sylvie, Sara(h), Stephanie, Serena, Sorrel, Samantha, Shirley, Sadie, Selma, Stella, Sophie, Sophie, Sapphire, Sally, Scarlett, Susannah, Suzanne, Susan, Kimberley, Katherine, Kezia, Keturah, Kitty, Kathleen.