One popular theme could be friendship exploration. Since Cuddles and Giggles are characters, their relationship in fanfiction might focus on how they become better friends, like going on adventures together in the forest. Another theme could be problem - solving. Maybe they face a big issue in their little world and have to work together to solve it. For example, a flood might come and they need to find a way to save their friends.
One common theme could be adventure. Since Inosuke is a rather wild and adventurous character, fanfics might involve him and AOI going on some sort of exciting journey together, perhaps exploring a new and dangerous area.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of fan - created works, and you can use the search function to specifically look for Cuddles x Giggles fanfiction. Another option is FanFiction.net. There are many users who post their stories there, and you might find some interesting ones about these characters.
Inosuke survives throughout the manga. The story doesn't have his death as part of the plot. His character remains active and plays a significant role until the end.
Some other platforms like Wattpad might also have such fanfics. However, the quality can vary. You could also check out some anime - related forums. Sometimes fans share their own written fanfics or recommend ones they've read. Keep in mind to respect the rules of each platform when looking for these fanfics.
First, you need to understand Inosuke's character really well. Know his strengths like his amazing physical abilities and his weaknesses like his lack of social graces. Then, choose the world you want to cross him over with. For example, if it's a fantasy world, figure out how his abilities would work there.