Here are some books that you may like since you said that you liked Tithe:
*Twilight series
*Blue Bloods
*Masquerade
*A Certain Slant of Light
*Wicked Lovely
*A Great and Terrible Beauty
*Rebel Angels
*Blood and Chocolate
*Uglies series
*Tantalize
I loved Tithe so hopefully these books will help you to find the perfect book for you! Good luck!
)