It could be Naruto himself. He has a strong sense of justice and is always ready to face new challenges. His ability to adapt and learn quickly would make him a great protagonist in a world filled with ghouls.
One interesting concept could be the combination of the unique powers. For example, Naruto's ninjutsu combined with the kagune abilities from Tokyo Ghoul. It might create some really cool fight scenes and new power dynamics.
Survival is also a big theme. Just like in the original Tokyo Ghoul series, where ghouls have to struggle to survive in a world that fears and hunts them, when combined with Naruto's world, characters from both sides often find themselves in situations where they have to fight for their lives. This can be against new threats created by the combination of the two universes or against the original enemies from each series.
One common theme is power combination. Since both Naruto and Tokyo Ghoul have unique power systems, fanfics often explore how the ninja techniques and kagune powers can be used together. Another theme is the clash of cultures. The shinobi way from Naruto and the harsh reality of the Tokyo Ghoul world are very different.
Many Kaneki x Tsukiyama fanfics also tend to be set in the dark and gritty world of Tokyo Ghoul. The setting adds to the overall atmosphere of the relationship. The fanfics might include elements like their interactions within the ghoul society, their battles together or against each other, and how these experiences shape their relationship. For example, a fanfic could show how they bond over a shared enemy or a difficult situation in the ghoul underworld.
Yes, there are some. You can start by looking on popular fanfiction websites like Fanfiction.net or Archive of Our Own. Just search for 'naruto x touka tokyo ghoul' in their search bars and you'll likely find a variety of stories with different plotlines and writing styles.
To develop their relationship, start with small moments of interaction. For example, Ayato could save Hinami from a dangerous situation, which would be the first step in building trust. Then, have them share their past experiences. Ayato could talk about his family and his struggles, and Hinami could do the same. This would make them understand each other better. Another way is to put them in a common goal - oriented situation, like working together to protect a group of weaker ghouls. Through this, they would see each other's strengths and weaknesses and grow closer.
It depends on personal preferences. Some people might think Tokyo Ghoul is better for its original story and character development. Others might prefer Tokyo Ghoul:Re for its continuation and new plot twists.
The theme of friendship in the face of adversity is quite common. They are in a world full of conflict between ghouls and humans, yet they form a connection. There's also the theme of sacrifice. In some fanfics, one may sacrifice for the other to uphold their new - found relationship or to protect the greater good in the Tokyo Ghoul universe.