I've also heard that Evangelical Lutheran quests tend to be accepting of differences if you are wanting something a little closer to Catholic quest formats. But that is just based on a book I read that was recommended to me by a friend more than personal experience.
That's exactly why I am reinforcing what you said. I'm not a religious type (more spiritual than anything), but a friend showed me a book that has a chapter on marriage... The whole books is pretty decent, but the friend was trying to help me out: https://www.amazon.com/Jesus-Quiz-Surprising-Answers-W-W-J-D/dp/1490426140