Well, in some 'ash mew starter fanfiction', the plot could revolve around Mew choosing Ash as its trainer. This is quite interesting because Mew is such a powerful and rare Pokémon. The story might then show how Ash and Mew form a special bond, different from the bonds he has with his other Pokémon. They could face challenges from other trainers who are jealous of Ash having Mew.
One idea could be that Ash discovers a young and injured Mew. He takes it upon himself to nurse Mew back to health. During this time, they form a deep bond and Mew starts to teach Ash some unique Pokémon moves that are not commonly known. This new knowledge gives Ash an edge in his battles.
You can try looking on fanfiction websites like FanFiction.net or Archive of Our Own (AO3). They have a large collection of Pokémon fanfictions, and there's a good chance you'll find some 'ash mew starter fanfiction' there.
One great 'ash rockruff starter fanfiction' could be about Ash and Rockruff's journey through a mysterious forest where they encounter rare Pokémon. It might focus on the bond between them growing stronger as they face various challenges together.
One popular Ash Mew Lemon fanfiction might be 'A Special Bond' which focuses on their unique relationship. It has some really interesting character interactions.
Team Rocket could be the main antagonists. They might hear about Ash's encounter with Mew and try to capture Mew for their own evil plans. They could set up all sorts of traps and schemes to try and separate Ash from Mew and steal Mew away.
One popular Ash and Mew fanfiction might be the one where Ash discovers Mew in a hidden forest glade. Mew then decides to accompany Ash on his journey, leading to many adventures together where Mew uses its psychic powers to help Ash in battles.
Character development is key. Ash might grow in his understanding of Pokemon and become more empathetic. Mew could also develop its own character arc, perhaps learning more about the human world through Ash. Additionally, a good fanfic in this regard would have vivid descriptions of the Pokemon world, making the reader feel like they are right there with Ash and Mew.
There are indeed some. In these fanfictions, Mew might be portrayed as a special Pokemon that has a deep bond with Ash. It could be in a way where Mew helps Ash in his Pokemon journey in unexpected ways. For example, Mew might use its psychic powers to communicate with Ash's other Pokemon to make them stronger or understand Ash better. Some fanfictions also create a backstory for how Mew and Ash first met, which can be really interesting to read.
Pikachu would most likely be there. Since Pikachu is Ash's closest companion, it would be involved in any story related to Ash. Maybe Pikachu could also have some sort of interaction with Mew, like being a bit jealous at first of Ash's new connection with Mew.
There are quite a few. 'A New Beginning for Ash and Totodile' is a fanfiction where Ash catches Totodile and they start a journey full of surprises. The story beautifully portrays Totodile's character. 'The Totodile Chronicles: Ash's Sidekick' is also good. It follows their story from Totodile being a little, inexperienced Pokémon to a strong and reliable partner for Ash. It has great character development and exciting plot twists.