Isn't the Hand of Bane quest towards lawful?
Anyway, I have a few quests that will do as you need--one will actually be with the Monks in the Library of Oghma. It should be up your ally for sure! I'll be in the next update.
Remember though, Undermountain isn't exactly where good hangs out
, but I will try to balance it out. I have a lot of other quests coming up too, so maybe on a few you can choose to go neutral or to good/lawful. (we can base it on your reply to the quest giver on completion of the quest. Cool?