Several tag suggestions:
I proposed demonology as a synonym for demons:
The rest can be made when someone actually asks a question about those books. If you can find two questions that are directly asking about those books, please link to 'em and we'll tag them (if there are only one question for each book, then it's not really worth it to re-tag since the tag could get deleted by the tag deleting robot)
Another suggestion would be minor-prophets although that might be a tad too meta for a useful tag.