A few more good ones are:
Cassandra; Cass, Andri, Cassie, Cassy, Sandra, or Sandy
Dominique; Dom, Mimi, Domin, Domi, Inque, or Dimi
Seraphina; Sarah, Sera, Sierra, Phine, Raph, Rina, or Finn
Eleanor; Elly, Leah, Ellen, Len, Lenny, or Nora
Emmilyne; Emma, Lyne, Em, Emily, Emmi, Eline, or Elly
Rachel; Rach, Ray, Chelly, or Rachy
Stephanie; Steph, Phaine, Finn, Stevie, or Teph
Lauria; Lorie, Laura, Lauri, Laurel, Lauren, Aurora, or Rory
Calpurnia; Cali, Alure, Cal, Calico, or Nia
Charlotte; Charlie, Carmen, Arlate, Charles, or Hachy
Veronica; Veri, Ronni, Nita, Rita, or Rori
Caroline; Cara, Carol, Cari, Lynn, Rolyn, Care, or Loriline
Lorraine; Lori, Layn, Rain, Lore, or Rane
That's all I can think of right now. Hope it helps!