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.
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.
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.
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.
Well, 'OP' in the context of this 'Fury Tries to Kidnap OP Harry Potter Fanfiction' could be the main character that Fury is targeting because of their special powers. Maybe it's a new character created by the author with unique magical abilities that Fury, for some reason, wants to get his hands on. It could be someone with a combination of different magical skills from the original Harry Potter universe, like being able to perform extremely powerful spells without a wand or having the ability to control all types of magical creatures.