His wife could be Hinata. In the original series, there were hints of their relationship. Hinata has always admired Naruto and they would make a great couple. She is a strong and kind - hearted ninja from Konoha, which would make for an interesting dynamic when Naruto returns with her as his wife.
In some fanfictions, Naruto might return to Konoha to a cold reception because the villagers still hold grudges from his past. Maybe they haven't fully accepted his power or the chaos he sometimes brought. For example, they could be afraid of his Nine - Tails power flaring up again and causing destruction.
The Return of Di's Daughter was an ancient romance novel. It told the story of Shen Wei transmigrating to the Great Yong Dynasty and becoming a pitiful little girl who was pushed into a pond by her stepsister and sent to an old house in the countryside by her stepmother in the name of recuperation. However, she went further and further away as a female devil. The novel has been completed, with a total of 587 chapters. You can try it out for free or purchase it.
Definitely Hinata. Her love for Naruto is well - known. Sakura, too, as she has grown closer to Naruto over the years. Ino might also be in the harem. She has had her own moments with Naruto and her skills as a ninja could be an asset. And perhaps Karui from the Cloud Village. After Naruto's peace - making efforts between the villages, she could have developed feelings for him.
He would most likely meet his father, Minato Namikaze, and his mother, Kushina Uzumaki. These are the two main family members he never really got to know growing up.
Perhaps it could be someone from his own village that he never really noticed before. Like a girl who was always in the background but during his time away, she grew into a confident and beautiful woman. She could be someone who works in the hospital, and Naruto starts to see her in a new light when he comes back injured from a mission.
In this fanfiction, the plot might involve Kushina coming back to help Naruto in his toughest battles. Maybe she uses her unique chakra abilities that Naruto has inherited to give him an edge. She could also provide emotional support, as Naruto has always longed for his mother.
Another theme is growth. Both Naruto and Hinata may have grown separately during Naruto's absence. When he returns, they have to adjust to the new versions of each other. For instance, Hinata might have become stronger in her own way, and Naruto has to recognize that.
Obviously, Kushina is one of the main characters. Naruto is also a central figure as her son. Since it's related to the Naruto universe, characters like Sasuke, Sakura, Kakashi might also be important in the fanfiction. They could interact with Kushina in various ways, like Sasuke might be skeptical of her at first, or Sakura could be eager to learn from her.
In such a fanfiction, Naruto might return to Sakura with newfound powers. Maybe he comes back after a long and dangerous mission. He could finally confess his long - hidden feelings for Sakura, leading to a romantic reunion.