Perhaps in the fanfiction, Naruto enters a spiritual realm where Minato exists. There, they have a long - awaited heart - to - heart talk. Minato reveals secrets about the Uzumaki clan and Naruto's heritage. They then make a pact to protect the village and Naruto leaves the realm with new - found knowledge and determination.
In a 'Naruto meet Minato' fanfiction, Naruto might finally get the chance to have a real conversation with his father. He could ask Minato all the questions he's had in his heart, like about his mother. Minato could also teach Naruto some new jutsu that only he knew.
In some fanfictions, Minato saves Naruto physically. For example, he might use his teleportation jutsu to appear right in the middle of a fight and whisk Naruto away from danger. In others, he could save Naruto spiritually. He might enter Naruto's mind, like in the fanfic 'Minato's Mind - Saving Mission', and give him the strength and confidence to overcome his inner demons. Sometimes, Minato saves Naruto from a political situation. For instance, in 'Minato and the Hidden Leaf's Politics', he uses his influence and wisdom to protect Naruto from being used as a political pawn.
In this fanfiction, Naruto's time travel to meet Minato could involve family secrets. Maybe there's a special family jutsu that only Minato was supposed to pass down but couldn't due to his early death. When Naruto arrives, Minato decides it's time to teach him this secret family technique. This could strengthen their family bond further and also give Naruto an edge in his future battles.
Maybe in the fanfiction, there is a powerful enemy who wants to use Naruto's connection to his parents against him. So, they somehow manage to bring Minato and Kushina back to the physical world. When they meet Naruto, it's an emotional moment. They form a plan to defeat the enemy together. Minato uses his strategic skills, Kushina her strength, and Naruto his own unique abilities learned over the years.
He uses his skills as a ninja to protect Naruto. He sets up special seals around Naruto's crib to keep out any potential threats. Also, Minato might try to use his chakra to boost Naruto's weak body. He would transfer his own life force a little bit at a time to help Naruto fight the sickness, which is a huge sign of his love.
Well, in some fanfictions, Minato might use his powerful jutsu to break through the barriers between the living and the dead and directly reach Naruto. He could also try to influence the people around Naruto to bring him closer to where Minato is, like using his spirit to communicate with Naruto's friends and convince them to help.
Minato's presence can have a huge impact. He can act as a mentor, teaching Naruto things he never knew about his family and heritage. His wisdom and skills can inspire Naruto to reach new heights in his training and ninja development.
Minato might show his protectiveness by always being near Naruto in spirit. For example, he could leave behind some kind of jutsu or power that activates when Naruto is in great danger, like a hidden seal that releases a powerful defense.
Some fanfictions turn Minato into a more complex and flawed character. Instead of the perfect hero he is often portrayed as, he becomes a man who made a big mistake in neglecting his son. This can lead to different relationships between Minato and other characters as well, like how Kushina might react to his neglect of Naruto.