Naruto could be more empathetic towards the Uchiha's cause. Since Mikoto is his mother figure, he would be exposed to the Uchiha's history and their grievances from a young age. This would make him more understanding of Sasuke's later actions and more likely to try and find a peaceful solution for the Uchiha's problems.
One possible plotline could be that Naruto grows up with a different set of values. Mikoto might teach him more about the Uchiha clan's ways, which could influence his fighting style. He may also have a closer relationship with Sasuke from the start as they are both in the same 'family' of sorts.
Well, perhaps in this fanfic, Naruto being raised by Mikoto means he has a more stable and loving upbringing. He could be friends with Sasuke from a very young age, and they might grow up like brothers. Naruto would also be exposed to the Uchiha's rich history and culture, which could shape his understanding of the ninja world and his own place in it. He might even get to know some secrets of the Uchiha clan that no one else outside the clan knows.
Well, it could be that Mikoto is trapped in a dangerous situation like a collapsing building or a genjutsu. Naruto, with his strong will and powerful chakra, breaks the genjutsu or rescues her from the rubble. He might sense her distress using his Sage Mode or his connection to the Nine - Tails' chakra and rush to her aid.
Naruto's personality could be a lot more family - oriented. Mikoto is all about family, so Naruto would likely pick up on that. He'd be more in tune with the importance of family bonds. Also, he might be less of an outcast as he'd have the support of the Uchiha family, which could make him more confident and less of a prankster.
Another idea for a fanfiction could revolve around a mission. Naruto, Kushina, and Mikoto are sent on a dangerous mission to retrieve a powerful artifact. Along the way, they face various challenges that test their teamwork. Kushina uses her strong will and Uzumaki chakra to break through barriers, Mikoto uses her Sharingan to detect hidden enemies, and Naruto uses his Rasengan and his never - give - up attitude to keep them going.
Yes, there are likely Naruto Mikoto fanfictions out there. You can start by looking on popular fanfiction websites like FanFiction.net or Archive of Our Own. Just search for 'Naruto Mikoto' and you'll probably find a variety of stories written by fans.
Maybe Mikoto is really into the rich world - building of Naruto. The unique characters, the complex ninjutsu system, and the various storylines in Naruto can be a great source of fascination. Fanfictions often explore different aspects of these elements that might not be fully covered in the original work, which could be the reason for Mikoto's obsession.
A possible plot in this fanfiction could be that Mikoto's pregnancy is a mystery at first. Naruto is curious and as he gets closer to Mikoto to find out more, they start to develop a deep friendship. The story could then unfold with them facing difficulties related to the pregnancy, like finding a safe place for Mikoto to stay, or dealing with people who might not be happy about the pregnancy. And through all these challenges, their bond grows stronger.
Well, one possible scenario could be that in this fanfiction, Naruto discovers Mikoto is pregnant and he takes on the role of a very protective friend. He might help her with daily tasks, like getting groceries or just being there for emotional support. Naruto's own experiences growing up without parents could make him extra determined to ensure Mikoto has a smooth pregnancy.