kitewithfish

Sister Light, Sister Dark and White Jenna--by Jane Yolen
Goose Chase by Patrice Kindl

The Crimson Petal and the White (nine-hundred-pages with a compelling heroine who happens to be a prostitute in Victorian London; accordingly contains explicit sexual content), and Wide Sargasso Sea--if she's read Jane Eyre. If she hasn't, well, that's got a bit of feminist bent for its time.

he Silver Wolf, by Alice Borchardt-

Bloody Jack series

Robin McKinley's Sunshine (also involves vampires) and

Armageddon's Children by Terry Prachett

he Alienest and The Angel of Darkness by Caleb Carr.

Little Sister by Kara Dalkey and the sequel is neat because it's historical fantasy set in Japan.

Howl's Moving Castle by Diana Wynne Jones.

Just Ella by Margaret Peterson Haddix
Hero's Song and Fire Arrow by Edith Pattou.

Megan McCafferty's Jessica Darling
Also, since it seems she's into supernatural/paranormal/slightly odd characters, there is always Annette Curtis Clause Silver Kiss and Blood and Chocolate. Additionally, House of Night books, Blue Bloods trilogy by Melissa de la Cruz, and Shattered Mirror by Amelia Atwater Rhodes. All significantly better vampire/werewolf books than Twilight.

Gemm a Doyle Trilogy by Libba Bray (A Great and Terrible Beauty, Rebel Angels, and The Sweet Far Thing)

Patricia McKillip! My favorite is still "The Forgotten Beasts of Eld"