Tim Hunter and Doctor Occult watch Zatara in Neil Gaiman's Books Of Magic.
Zatanna trying to get her father back is an old idea because, in her earliest appearances, she was looking for Zatara - who had disappeared - with help from several superheroes before she assisted, then joined, the JLA.
In Smallville: Hex, Zatanna gives Ollie, who is building the JLA, her phone number. In the course of the episode, she has interacted with Ollie and Clark although not with any other superheroes as yet.
The basis of magic needs to be clarified. Do magicians deal with gods, demons or energy? Speaking the spells backwards does not seem to have been carried over into Smallville.