Sure. Some fanfictions might explore their relationship in a platonic way but with a lot of adventure. Maybe they go on a mission to uncover an ancient ninja secret. These types of stories can be really engaging as they focus on the action and the mystery rather than the mpreg concept. You can search for tags like 'Madara x Naruto' and 'Adventure' to find such stories.
Well, there are quite a few. You can check out fanfiction platforms like FanFiction.net or Archive of Our Own. Look for stories that focus on their battles, their growth as characters, or their unique bond in a non - mpreg way. For example, stories about them teaming up against a common enemy or exploring the ninja world together.
There are fanfictions that delve into the philosophical differences between Madara and Naruto. How their different views on the ninja world could lead to interesting conversations and character development. These stories often don't involve the mpreg theme and can offer a deeper look into the two characters. You might find them by looking for tags related to character study and 'Madara x Naruto'.