Another idea could be the role of the Kyuubi in the relationship. The Kyuubi might be a protective force towards Naruto and the female. It could also be a source of conflict if the female is afraid of the Kyuubi's power at first. However, over time, she could learn to accept and even harness that power for their relationship and the greater good.
In such a fanfiction, a possible idea is the development of the relationship between Naruto and the female character. It might start off rocky due to the arranged nature. But as they get to know each other, they could discover each other's strengths. For example, Naruto's determination and the female character's unique skills could complement each other.
One way to make it interesting is by exploring the power dynamics. Since Naruto has the Kyuubi within him, the arranged marriage could be a political move by the village elders to control that power. For example, they might arrange a marriage with a powerful clan's member to ensure loyalty and the proper use of the Kyuubi's strength.
Sakura could also be a candidate. Given her strong personality, she might initially resist the arranged marriage. But as she gets to know Naruto better and realizes the potential of the Kyuubi's power, she could warm up to the idea. Plus, it would create a lot of drama considering her previous relationship with Sasuke.
One plot idea could be that Temari is arranged to marry someone from a minor clan in Konoha. This causes a stir as she is from Suna and has a high status. She initially struggles with the idea of being married into a less - prominent family, but then discovers that the family has some unique and secret techniques that could benefit Suna. Another idea is that the arranged marriage is part of a prophecy. Temari and her future partner must work together to fulfill the prophecy, which involves saving both Konoha and Suna from a great danger.
Well, perhaps in the fanfiction, the arranged marriage is part of a prophecy. Naruto, being the hero he is, initially balks at the idea of an arranged marriage with Ino. However, Ino, who has secretly had a crush on Naruto for a long time, tries to make the best of it. As they go through the motions of getting to know each other for the marriage, they face many challenges together, like dealing with jealous suitors from both sides and also trying to convince their friends that this arranged marriage might not be such a bad thing after all.
Another plot idea could be that the arranged marriage is part of a prophecy. Naruto, being the main character, is thrust into this situation because it's believed that his union with the other person is the key to saving the ninja world. This would add an element of destiny and mystery to the story.
In a Naruto arranged marriage Kurenai fanfiction, perhaps the elders of the village arrange the marriage to bring stability. Naruto is initially resistant as he has feelings for someone else (like Sakura). However, Kurenai is patient with him. She shows Naruto a different side of life, teaching him about the importance of family and home. As time passes, Naruto realizes that Kurenai is a great partner. He starts to see her in a new light and eventually falls in love with her through her gentle guidance and understanding nature.
One idea could be that Naruto is thrust into an arranged marriage with Artemis. Since Artemis is a goddess in Greek mythology, there could be a lot of cultural clashes. Maybe Naruto has to learn about Greek customs and the ways of the gods. Another plot could involve Naruto trying to gain Artemis' respect in this new situation, as she is a powerful and independent figure. He could use his ninja skills to prove his worth to her.
One idea could be that the female Naruto uses the symbiotic relationship with Kyuubi to gain unique ninja skills faster. For example, she could tap into the Kyuubi's chakra in a more refined way than in the original story, allowing her to perform new jutsus.
One idea could be that the female Kyuubi form uses her unique powers in a way Naruto has never thought of. For example, she might be able to communicate with animals in a more profound way due to her connection with nature as a nine - tailed fox. Another plot could revolve around how she has to hide her femininity while in the Henge form to avoid unwanted attention in the ninja world. Maybe she struggles with maintaining the balance between her human - like emotions and the wild nature of the Kyuubi.
One interesting plot idea could be that the Fem Kyuubi and Fem Bijuu form an alliance to protect Naruto from a new, powerful enemy. They use their unique powers and femininity to outwit the foe. For example, they could use their charm to distract the enemy while Naruto prepares a powerful jutsu.