A really interesting plot would be if a mysterious force starts merging their two worlds together. Naruto and Konan find themselves in the middle of chaos as their friends and enemies from both worlds start interacting. They must figure out how to stop the merge before it destroys both their worlds. Along the way, they might develop a deeper understanding and even a friendship.
One idea could be Naruto forming a unique bond with each member of the harem in different ways. For example, with Konan, he might discover her love for art and they could bond over creating origami together. Another could be Naruto teaching his harem members some of his ninja techniques, which would lead to interesting training sessions and character development.
Perhaps in this fanfiction, Naruto and Konan's families are brought together because of a mysterious illness that only their combined family lineages can cure. They have to search for ancient remedies and along the way, they learn about each other's family histories and traditions. Their kids could play a crucial role in finding the cure, using their own budding skills and the bond between the two families.
Maybe a fanfiction where Konan discovers a secret about Itachi that could change the way Naruto views him. This could lead to a complex web of relationships and a journey of self - discovery for Naruto as he tries to figure out who to trust. The story could also explore Konan's past more deeply in relation to this new discovery.
A great plot could be that fem Naruto and Konan are forced to fight against each other in a tournament set up by a powerful and devious ninja. But as they fight, they realize they are being manipulated and decide to join forces instead to take down the real enemy behind the tournament. Or perhaps fem Naruto has a prophetic dream about Konan being in danger, and she sets out on a journey to protect her. Along the way, they encounter various challenges that test their friendship and skills. Also, there could be a plot where Konan teaches fem Naruto some of her unique paper - based jutsu, and in return, fem Naruto shows Konan some of her Uzumaki clan secrets.
One idea could be that Naruto, with his unique charm and strength, gradually attracts Konan and other characters into his 'harem'. For example, they could go on adventures together, facing various threats in the Naruto universe, and during these experiences, their relationships deepen. Naruto could use his ninja skills to protect them, and they in turn offer different forms of support, like Konan using her paper abilities for strategic advantages.
Well, a great plot could be that Konan has a premonition about a threat to the Akatsuki that no one else believes. Naruto, in his never - ending quest for peace, gets wind of this and decides to help her convince the other Akatsuki members. This could lead to a series of events where they have to face internal disputes within the Akatsuki, as some members don't trust Naruto. Along the way, Konan and Naruto could develop an unexpected friendship that challenges the Akatsuki's ideology.
One idea could be that Naruto, in an alternate universe, is a powerful leader and Konan along with other female characters from the Naruto world are drawn to his leadership and kind heart. They form a sort of harem around him, and together they face new threats to the ninja world that require their combined skills and powers.
One idea could be exploring how Konan's pregnancy affects her relationship with her comrades. Maybe they become more protective of her, and she has to balance her duties with her new situation.
One idea could be that Itachi survives his battle with Sasuke and teams up with Naruto to face a new, powerful enemy from the Otsutsuki clan. They combine their unique skills, Naruto's Rasengan and Itachi's Sharingan abilities, to take on this threat.
One idea could be a swordsman from another world ends up in the Naruto universe and has to learn chakra control to enhance their sword skills. They could team up with Naruto and his friends to fight against a new, powerful enemy that is immune to regular ninjutsu but vulnerable to the swordsman's unique sword techniques.