Elizabeth Ariana- I like it if it's pronounced ar-ee-AHN-na.
More suggestions:
Elizabeth SeleneElizabeth FelicityElizabeth GwendolenElizabeth AmyntaElizabeth Arielle (air-ee-ELL)
Elizabeth Alaia (I pronounce this uh-LAY-uh, but I am not sure that is correct)
Elizabeth GlorianaElizabeth LibertyElizabeth Ayla
Let me know if you need any more, or if you like any of these!