One interesting Neuvillette fanfic could be 'Neuvillette's Journey of Discovery'. It might explore his character in-depth, his thoughts and how he copes with the various situations in the world he inhabits. Another could be 'Neuvillette and the Mysterious Case' which could involve him solving some sort of enigma in Fontaine.
One horror story could be about a hydro generator that suddenly malfunctioned during a peak demand time. The whole power supply in a small town relying on it was cut off, leaving people in the dark, with no heating in cold weather and food spoiling in fridges.
You can start by looking on Archive of Our Own (AO3). It has a large collection of fanfics from various fandoms, including those about Neuvillette. Many talented writers post their works there.
Sure. There was a hydro generator where a worker got trapped inside the turbine area during a maintenance check when the system unexpectedly started up. It was a terrifying situation as the powerful turbines could have easily killed him. Fortunately, he was rescued just in time.
Naruto would first be cautious, but then his friendly nature would take over. He'd try to find common ground with the dragon. Since he has a connection with all living things, he'd attempt to communicate with it on a deeper level. He might share his dreams and stories with the dragon, hoping to gain its trust.
The reaction of the Dragon Ball characters to Thanatos' invasion would be complex. Goku, as always, would approach it with a sense of adventure and the desire to test his limits. He would be the first to reach out to Thanatos in combat. Vegeta would be seething with anger at the thought of someone invading their territory. He would fight with all his might, using his Galick Gun and other powerful attacks. For the younger characters like Trunks and Goten, they would be inspired by the older fighters. They would follow their lead and contribute in their own ways. The non - Saiyan characters like Krillin and Tien would use their unique fighting styles and skills. The Dragon Ball universe has a long history of coming together against threats, and this would be no different.
Sasuke would be more guarded. He would see the dragon as a potential power source or a liability. He might keep his distance at first, observing how Naruto and the dragon interact. If the dragon proves useful in battles or in protecting the village, he might start to respect it more. As for Kakashi, he would be intrigued. He would likely give Naruto some advice on how to handle the situation, like how to train the dragon and keep it a secret if necessary.
The Z - fighters like Krillin and Yamcha would be curious about Naruto. Krillin might try to befriend him quickly, while Yamcha might be a bit jealous if Naruto starts getting a lot of attention. In the Naruto world, characters like Sakura and Sasuke might not even notice Naruto's disappearance at first if he has been neglected. But later, they might realize the importance of Naruto when things start to go wrong in their world without him. And in the Dragon Ball universe, Piccolo would be very watchful of Naruto, trying to figure out his motives and if he poses any threat to the safety of the planet.