Thoughts on how to fix a depression in the roof

If you scroll up a bit, you'll see that I was able to pull the dent out with a strong magnet.
I read the entire thread. I agree that with yours that it could just be popped out. Creased panels like mine cannot be manipulated with the rods and levers of Paintless dent repair. I would love to know what kinds of magnets you have. I will try anything not to replace my roof.