One popular character could be a young human adventurer. This character is brave and curious, always eager to explore new areas in the Pokemon - only - human world. They might start off as a novice but quickly grow in skills and knowledge, becoming well - known among other humans for their ability to handle difficult situations involving Pokemon.
Well, without actually reading the specific fanfiction, it's hard to say exactly which six Pokemon Ash trains. It could be a combination of his classic ones like Pikachu, Charizard, Bulbasaur, Squirtle, and then maybe some more unique or rare ones that the author has chosen for a new and interesting story line.
One interesting story could be about a human trainer who has a unique bond with a Pikachu that goes beyond the typical trainer - Pokemon relationship. The Pikachu might be able to understand the human's emotions in a very deep way and they go on adventures together, facing challenges not just in battles but also in understanding different Pokemon cultures in the fanfic world.
One possible scenario in this fan fiction could be that Ash has some sort of special ability or connection that attracts only shiny Pokemon. Maybe it's a hidden power within him that he discovers early on in his journey. For example, when he first starts out in Pallet Town, instead of the regular Pikachu, a shiny Pikachu is drawn to him. This would set the stage for his entire journey filled with shiny Pokemon encounters.
In this 'Ash trains only six pokemon fanfiction', the uniqueness lies in the focus it gives to the six Pokemon. In other fanfictions, there can be a sprawl of different Pokemon characters, which can sometimes make the story feel scattered. Here, with only six, each Pokemon has a more prominent role. The relationships between Ash and these six are likely to be explored in greater depth. Also, the battles and training regimens are likely to be more detailed for these six, as the author has to work within the constraint of this small number, making it different from the more expansive Pokemon fanfictions.
The rarity factor. Shiny Pokémon are extremely rare in the Pokémon games, so in fanfiction focusing on only catching them, it creates a sense of exclusivity. For example, in many such fanfics, the main character has to go to great lengths to find just one shiny.
One popular 'caught only shiny pokemon fan fiction' might be about a trainer who embarks on a journey specifically dedicated to finding only shiny pokemon. They face numerous challenges, like dealing with the rarity of shiny pokemon in certain areas and having to outwit other trainers who also want the shinies. This could lead to an exciting adventure filled with unique pokemon battles and discoveries.
You can try looking on fan fiction websites like FanFiction.net or Archive of Our Own. They have a wide range of pokemon fan fiction, and you might be able to find some stories that are about catching only shiny pokemon by using the search function and typing in relevant keywords.
He would be considered a very lucky trainer. Shiny Pokemon are hard to come by, and if he catches only them, he'd be like a legend in the Pokemon world. People would probably flock to him just to see his collection.
According to the information you provided, I recommend the novel "A Pikachu at the Beginning" to you. It is a Doujinshi novel about the Elf God Realm. The protagonist will randomly get a Pikachu at the beginning of the story. As the story develops, he can sign a contract with Pokemon. Although it wasn't a Pokemon series, it was still a great novel about another world. I hope you like this fairy's recommendation. Muah ~😗