One popular story could be 'Ash's Unusual Adventures in the Harem World'. In this, Ash might find himself in a world where he has to deal with multiple female companions in unexpected ways. Another could be 'Ash and the Harem of Pokémon Trainers', where female trainers from different regions are all attracted to Ash's unique charm and skills.
One popular 'Ash Ketchum harem fanfic' is 'Ash's Unusual Journey'. It features Ash with a group of female companions in unique adventures. Another is 'Ash in the Harem World' which has an interesting take on how Ash deals with a harem situation. There's also 'The Harem of Ash Ketchum' that focuses on the relationships within the harem.
One common theme is friendship. Ash forms friendships with the female characters in Alola that gradually develop into something more like a harem. Another theme is growth. Ash grows not just as a Pokemon trainer but also in his relationships as he navigates this new dynamic.
Ash Ketchum is the central figure. His harem likely consists of various characters. For instance, Dawn, who is a skilled Pokémon coordinator. She might be part of the harem and brings her own unique personality and skills. May could also be one of the main characters in the harem, with her knowledge of Pokémon contests. And of course, there could be other new or less - known characters added to the harem in different fanfictions.
Some popular ones might include those that explore different relationships Ash could have with his female companions in unique storylines. For example, fics where his bond with Misty takes on a more romantic angle in a different adventure setting.
Misty is often in Ash's harem in fanfictions. She has been with Ash since the beginning of his journey and their relationship has a long history. Another common one is Serena. She has strong feelings for Ash and her character development is closely tied to him.
One popular theme is the growth of Ash's relationships with the different characters in his harem. It often shows how they support him in his Pokemon journey. Another theme could be the unique dynamics between Ash and each member of the harem, like how they interact during battles or in different regions.
Well, apart from the big fanfic platforms, you can also check out Pokémon - related forums. There are often threads dedicated to sharing and discussing 'Ash Ketchum harem fanfic'. Sometimes, other fans might recommend some really good ones that you might not find easily on the main search engines.
One interesting plot could be Ash's adventures in different regions while also managing the relationships within his 'harem'. For example, he might have to deal with the jealousy among his female companions. Another plot could involve Ash facing a powerful enemy who tries to use his harem against him. It could also be about Ash training his Pokémon while also trying to balance his time with all the characters in his harem.
In these fanfictions, the relationships develop through shared experiences. Ash might save a girl from a dangerous Pokémon, and from that moment, her feelings for him start to change. As for the harem aspect, the girls may start to compete in a friendly way for Ash's attention, but also support each other at times. They all contribute to Ash's growth as a character, and he in turn affects their lives as well. It's a complex web of relationships that are built up over time.