Well, a common trope is the 'rivalry to love' in Naruto x Harem fanfiction. Different female characters might start as rivals for Naruto's attention but end up in his harem. Also, the 'hidden relationship' trope can be found, like Naruto having secret relationships with some of the girls in his harem before others find out. Then there's the 'protector Naruto' trope, where he uses his strength to protect his harem from various threats.
One popular trope is the 'powerful Naruto' where he is even more powerful than in the original series. This attracts multiple female characters to him. Another is the 'outsider acceptance' trope, where Naruto, who was once an outcast in the village, now has a harem of girls who fully accept and love him for who he is. And there's also the 'adventure harem' trope where Naruto goes on various adventures with his harem members.
A third popular trope is the 'forbidden love' aspect. Maybe a relationship between a Naruto character and a Bakugan - related character is frowned upon in their respective worlds. This adds an element of drama and tension to the fanfiction. For example, if a shinobi from Naruto falls in love with a Bakugan trainer, their different cultures and duties might create obstacles for their relationship.
One popular trope is the 'fish out of water' scenario. For example, a character from Naruto suddenly finding themselves in the world of Fullmetal Alchemist and having to adapt to its rules and customs while also dealing with a harem of characters from both universes. Another is the power - up trope. A character might gain new abilities by combining the alchemy knowledge from Fullmetal Alchemist with the ninja skills from Naruto, all while being in a harem - type situation where different characters are attracted to their new - found power and unique personality. Also, the 'rivalry for love' within the harem is quite common, with characters from Naruto and Fullmetal Alchemist vying for the main character's affection.
One popular trope is the 'fish out of water' situation. For example, a Naruto character might find themselves in the Fire Emblem world and have to adapt to its different combat styles and social hierarchies. Another is the power - up trope, where characters gain new abilities or powers through their interactions in the harem setting. And of course, the relationship - building trope is common, with characters slowly developing feelings for each other over time through shared adventures and challenges.
Some tropes in this type of fanfiction include the 'damsel in distress' but with a twist. Maybe a Until Dawn character is in trouble and the Naruto character uses their unique skills to save them. There's also the 'rival turned lover' trope. Two characters who were initially competing for the main character's attention end up falling for each other instead. And the 'training montage' trope can be adapted. Instead of just Naruto - style training, it could be training to survive in the Until Dawn horror - filled environment.
One common trope is the 'protective Ash'. In many of these fanfictions, when Ash has a harem, he becomes extremely protective of the girls. For example, if they are in danger during a Pokemon encounter, Ash will go to great lengths to keep them safe. Another trope is the 'rival for Ash's attention'. There are often other male characters who are interested in the girls in Ash's harem, creating a bit of jealousy and competition. This can lead to some interesting storylines.
Some of the popular Naruto fanfiction tropes include the 'Power - Up' trope. In this, a character gains new and often overpowered abilities, which changes the course of the story. 'Redemption' arcs for characters like Sasuke are also quite common. There are also 'Crossover' fanfics, where Naruto characters interact with characters from other series. For example, Naruto meeting characters from the Dragon Ball series. These tropes add new and exciting elements to the original Naruto universe and are loved by many fans.
The 'rivalry - turned - love' trope is also common. Some female characters start off as rivals to Naruto in terms of power or goals, but then gradually develop romantic feelings for him. Like Sakura might initially be more focused on Sasuke, but in the fanfic, she realizes Naruto's true worth and falls for him.
One common trope is the 'fish out of water' scenario where the protagonist, often a new addition to the Halo universe, finds themselves surrounded by a group of characters who form the harem. Another is the 'protective harem' where the members of the harem band together to protect the main character from various threats in the Halo world.
One popular trope is the overprotective yandere. In yandere harem fanfiction, this character is extremely possessive of the main character and will go to great lengths to keep others away. Another trope is the rivalry among the harem members. They often compete for the main character's attention, which can lead to some intense and dramatic scenes. Also, the 'damsel in distress' scenario where the main character is constantly in need of protection from the yandere or other threats is quite common.
One popular trope is the 'accidental harem' where the protagonist unknowingly attracts multiple love interests. For example, in many school - set anime fanfictions, the main character's kind nature or unique talent draws in different characters of the opposite sex. Another is the 'harem competition' where the love interests compete for the protagonist's affection, often leading to humorous and dramatic situations. Also, the 'protective harem' where the members of the harem work together to protect the protagonist from external threats is quite common.