Which goddesses and women are called wife of Zeus?
Honestly in order to offer a comprehensive response to this I'd have to comb through basically all ancient Greek literature, so instead I'll just give you a small list off the top of my head, sorry!
To preface this, many of the sexual unions Zeus and other gods engage in can be referred to as gamos/gamoi, a term that is often translated as marriage but doesn't necessarily imply the formality of an official marital union (Apollo's rape of Creusa in Euripides' Ion is called gamos for instance), just as the verb gamēo can mean to marry or simply to have sex with. So I'm limiting this to women who I know for sure are called "wife of Zeus" sometimes rather than including all the ones he is said to have performed a gamos with.
The only one who bears this title consistently and frequently is Hera, but there are some others who are occasionally described as his wives in some sources: Leto (Homer, Iliad 21.498-9, Homer, Odyssey 11.580, Quintus Smyrnaeus, Posthomerica 11.21, Greek Anthology 3.14, probably others); Metis (Hesiod, Theogony 886); Themis (Pindar, fragment 30, Diodorus Siculus, Library of History 6.1.9 - not explicitly called wife here but he is said to have married her and I'm including it for the sake of thoroughness since she is called his wife elsewhere); Io (Aeschylus, Prometheus Bound 834); Demeter (Diodorus Siculus, Library of History 6.1.9 - again not actually called a wife, but she is one of 3 women he marries in this account, the other two being Hera and Themis who are explicitly called his wives elsewhere); Semele (Pausanias, Description of Greece 2.31.2, various places in the Dionysiaca, possibly elsewhere as well); Europe (Moschos, Europa 165 - the word used here is νύμφη, "bride").
Mentioning this separately because it is quite anomalous, but the earliest description of a formal wedding among the gods (including wedding preparations, gifts and even a marriage proposal) is provided by Pherekydes of Syros and takes place between Zas/Zeus and Chthonie/Ge. The myth also serves as an etiology for the anakalypteria, the unveiling of the bride.
Again, this is by no means a complete overview, just the ones I know about.
