Ooh, interesting! My first thought, though, is does the correspondence depend on the deck you're using, since some don't use the traditional suits at all?
Let me see, let me see...
For me personally, I might see associate the cards this way:
0 Fool= Pan (I associate him with this card mostly based on the mythology, but I feel it's apt)
1 the Magician= Loki or Hermes (Quick wit and quick hands, kind of sly, but wise)
2 the High Priestess= Frija (encourages you to look within for clarity and insight)
3 the Empress= Demeter, Freya or Cerridwen (connection with femininity, fertility, and the earth)
4 the Emperor= Dionysus or the Dagda (not sure why I picked these two for this, but it was my gut impression, so I'll go with it)
5 the Hierophant= Osiris (again, gut impression)
6 the Lovers= Aphrodite and Hephaestus (I just see them in this card; strong, steady relationship, loving despite difficulties)
7 the Chariot= Artemis or Apollo (maybe Poseidon)
8 Strength= the Morrigan (self-explanatory, haha
)
9 the Hermit= Tyr or Odin (wisdom, study, search for knowledge)
10 the Wheel of Fortune= Tyche (she's the first deity that comes to mind for me here)
11 Justice= Athena, Tyr, of Freya
12 the Hanged Man= Odin (no questions there, haha)
13 Death= Hecate, Arawn, Kali or Hel (I think the listed deities could be numerous and highly variable, depending on circumstances)
14 Temperance= Brighid (I just see her in this card)
15 the Devil= Shiva, Cailleach (several others I think could go here, tricksters for example)
16 the Tower= Loki (he tends to reveal deceptions while using them, as well as encouraging people to look beyond how things seem)
17 the Star= Brighid, Freya, Ostara, Sophia (any goddess that helps you look inward and outward for balance and wisedom, I think)
18 the Moon= Diana, Luna/Selene, Mani, Hecate (lots of options here!)
19 the Sun= Apollo, Aine, Bast, Sekhmet, Freyr, Etain...
20 Judgement= Tyr, Zeus, Odin
21 the World= Gaia
Of course, this is all according to my own, personal associations between the cards and specific deities. As I said, I think it really depends on the reader, the person one is doing the reading for, the purpose of the reading, etc.