Sasuke can also be a prominent character. His complex personality and powerful abilities make him an interesting addition to the royal family dynamics. He might be seen as a threat or a potential asset to the family. And then there are original characters created specifically for the fanfiction. These original royal family members can become popular as the writers develop their backstories, personalities, and relationships with the existing Naruto characters.
Another popular character could be Hinata. Her gentle nature and her own noble background in the Hyuga clan can create interesting storylines when combined with the concept of a royal family. She could be involved in diplomatic relations between the Hyuga and the royal family, or perhaps in a romantic relationship with a royal family member, which would change the power dynamics not only within the family but also in the broader ninja world.
Naruto and Hinata are obvious choices as they are central to the family. Their relationship and how they raise their children are always interesting to explore.
The court jester can also be quite popular. They bring a sense of humor and light - heartedness to the often - serious world of Royal Twilight. Their antics and their ability to see through the pretenses of the court can be very appealing.
Their children are also very popular. Boruto and Sarada, for example. Fanfiction often explores their relationship as the children of two of the most important ninjas in the village. They might have a lot of pressure on them, and exploring how they deal with that while also having their own friendship or rivalry is great content.
Naruto himself is obviously a must - include. Hinata is also very popular as his wife. Their kids, like Boruto and Himawari, are often featured. Also, characters like Sasuke can be included as Naruto's long - time friend who might interact with his family.
In naruto jinchuuriki family fanfiction, Naruto and his family are key. But don't forget about the other jinchuuriki like Yugito Nii. Her family could be explored, especially how they dealt with her being a jinchuuriki in the Hidden Cloud Village. Roshi from the Hidden Stone Village is another jinchuuriki whose family could be a part of the story. Also, considering the Akatsuki's interest in jinchuuriki, characters like Itachi and Sasuke could be included in relation to how they interact with jinchuuriki families. For example, Itachi's actions might have had an impact on the families of the jinchuuriki he was involved with, which could be a very interesting angle to explore in the fanfiction.
Obviously, Naruto and Kushina are must - includes. Minato is also very popular as he is Naruto's father and Kushina's husband. Another character could be Jiraiya, since he was Minato's teacher and had an influence on Naruto's life too.
Obviously Naruto and Boruto themselves are very popular. But characters like Hinata, Naruto's wife, also add a lot to the family dynamic in fanfiction. Sasuke is another one, as he has a complex relationship with Naruto and can be involved in the story in many ways. For example, he could be a mentor to Boruto. And of course, the older generation like Kakashi can also be included to give some wisdom and guidance to the family.
Lelouch is definitely a popular choice. His complex character and his role in the story make him a great focal point for fanfics. Another popular one is Suzaku. His relationship with Lelouch and his own moral dilemmas can be explored further in fanfic. Also, Cornelia is often featured as she is a strong and complex female character within the royal family.
Often, the main female lead who is pregnant is a popular character. She is usually depicted as strong yet vulnerable. The male royal counterpart, like a prince or a king, is also very popular as he is often shown as being protective and in love with the pregnant woman.
The queen, usually. She often has a great deal of power and influence. Her decisions can shape the fate of the entire kingdom. And her relationships with other royals, like her children or the king, can be full of drama.