Madrigal
Tarot of the Hidden Realm also pairs nicely with both of the Froud Faerie decks.
This sounds like a great idea; I'm going to try it!
Another pairing I've enjoyed is the Tarot of the Hidden Realm with Messenger Oracle.
And some more obvious pairings, since the tarot and oracle are done by the same artist, but they work very well:
Wild Unknown Tarot and Animal Spirit Oracle
Pearls of Wisdom Tarot and Joy and Sorrow Oracle
Trionfi della Luna and Cartes de Visite