I like balloon cam. I'm not sure how it would work with all the right angle turns in dungeons, but I've seen it work well in more open-world games. A good game camera is one you don't notice.
Our current camera allows plenty of user control- this has pros and cons. It's the most customizable (you are the camera person), but honestly it does require a bit of effort (you are the camera person).
After we work on optimizations (fix laggy stuff) we are going to polish the overall experience. Ideas like this will be helpful for that conversation- basically anything that will make the game more pleasant, intuitive, and fun for new (and not so new) players. We'll be talking about it more soon. Keep the ideas coming, we appreciate it.