I'm looking for a high willpower leadership or spirit deck to pair with a lore/tactics attack deck. Any suggestions? Playing tomorrow with a group.

Leadership Gondor decks can get a lot of willpower, but I'd suggest spirit so that someone in the group has test of will. You could do a Eowyn Theoden Theodred Rohan deck. Or a Caldara Eowyn Frodo deck. Or just go full willpower Spirfindel Galadriel Eowyn.