Maybe Henry has a magical ability related to baking. In the fanfiction, he discovers that when he bakes with a certain emotion, like pure joy, his pastries can have extraordinary effects on the people who eat them. For example, it could make a sad person instantly happy. This leads to all sorts of adventures as he tries to use his power for good in the patisserie world.
Another way is to give Henry a backstory. For example, he grew up in a family that didn't have much money, but they always made the best of what they had with simple home - made pastries. This made him appreciate the value of baking from a young age and also gave him the motivation to learn and create more elaborate desserts. You can also show his character growth through his relationships. If he has a mentor in the patissiere world, his interactions with that person can shape him. At first, he might be shy and hesitant to take advice, but as he gains confidence, he becomes more open - minded and willing to learn new things, which helps in his character development.
One common theme is the combination of magic and food. In these fanfictions, magic is often used to enhance the process of making pastries or to create unique food items. For example, a spell might be used to make a pastry that can give the eater a special power.
It's hard to name the 'best' as it's subjective, but some authors who are quite popular in this niche are those who really capture Kashino's character well. For example, there are authors on Fanfiction.net who have a large following for their Kashino x reader works. They often write in a way that stays true to his personality from the original series while also creating an engaging relationship with the reader character.
A fanfic titled 'Yumeiro Treats at Hogwarts' is also quite interesting. In it, the Yumeiro Patissiere characters visit Hogwarts. They introduce their unique pastries to the Hogwarts students, and there are fun interactions between the two groups. Harry and his friends get to taste these new and delicious treats and might even incorporate them into their magical studies in some way.
One popular plot could be the reader and Kashino working together on a challenging pastry competition. They face various difficulties but grow closer through the process. Another plot might involve the reader being a new student at the patisserie school and Kashino taking on the role of guiding the reader, which leads to a budding romance.
The popularity might be due to the characters themselves. Ichigo is a very relatable character with her passion for patisserie, and Kashino is the talented and sometimes brooding counterpart. Their dynamic is interesting.
One great 'yumeiro patissiere ichigo x kashino fanfic' could be 'A Sweet Encounter'. It beautifully captures their relationship and the world of patisserie they are in. The author does a wonderful job of showing Ichigo's growth and how Kashino supports her in her journey.
In 'Henry Danger Henry x OC fanfiction', a frequently seen theme is the rescue scenario. The OC might get into trouble and Henry has to save them, which then starts their relationship. There's also the theme of teamwork. They could work together to solve problems in the city, like helping out at the local community center or dealing with a new type of threat. Additionally, the theme of family acceptance might be there. Henry's family plays a big role in the show, and the fanfiction could explore how his family accepts or reacts to the OC in his life.
Ray Manchester is often in these fanfictions. Since he's Henry's boss as Captain Man in the show, he can have interactions with the OC. Charlotte, Henry's friend, also frequently appears. She might be the OC's friend too or have some sort of rivalry with the OC. Piper, Henry's sister, could be another character. She might be curious about the OC and get involved in their relationship with Henry in different ways.