A frequent trope is the overprotective big sister being extremely possessive. She sees the male reader as her 'little boy' even when he's grown. In some fanfictions, this can lead to conflicts within the family. Also, she may be the first to jump to his defense in any situation, whether it's a minor argument with a neighbor or a more serious issue at school or work. She's like his personal bodyguard in a sense.
Often, there's the trope of the overprotective sister trying to shelter the male reader from the 'evils' of the world. She might not let him watch certain movies or go to certain places she deems dangerous. This can create a sense of frustration for the male reader as he tries to assert his independence, but at the same time, it shows the deep love and concern she has for him.
A common theme in 'overprotective big sister x reader fanfiction' is conflict. There can be external conflicts like other characters trying to harm the reader, which the sister has to fend off. But there are also internal conflicts, such as the sister's struggle between being overprotective and allowing the reader to have their own experiences. This creates a lot of drama and tension in the story. Additionally, the theme of unconditional love is prevalent. The sister loves the reader without any conditions, and this love drives her actions throughout the story, whether it's scolding the reader for being reckless or celebrating their achievements.
Finding good 'overprotective big sister x reader fanfiction' can take a bit of time. You could also ask in relevant fan communities on social media platforms. For example, on Tumblr, there are often groups dedicated to different types of fanfiction. They might be able to point you to some hidden gems. The best part about this type of fanfiction is that it often explores the relationship dynamics between the two characters in a very emotional and sometimes comical way.
First, establish the relationship between the sister and the male reader. Show their shared history, like how she's been overprotective since he was a kid. Then, introduce a conflict. Maybe the male reader wants to go on a trip alone, but the sister is against it. Build tension as they argue about it. As the story progresses, let the male reader start to break free a bit, which makes the sister realize she needs to let go. This creates an interesting character arc for both of them.
A frequently used trope is 'Injury/Healing'. For example, the reader could get injured and Male Merida takes care of them, which deepens their bond. Also, the 'Fish Out of Water' trope can be seen, like if the reader is from a different world or culture and Male Merida helps them adapt. This creates interesting situations and character dynamics. There's also the 'Love Triangle' trope sometimes, where another character might be vying for the reader's or Male Merida's affection, adding some drama to the story.
One common trope is the overprotective girlfriend being overly cautious about her partner's battles. For example, she might try to keep him from taking on dangerous missions in the RWBY universe. Another is her getting jealous easily when others get too close to her partner during team interactions.
In many 'kenny x reader fanfiction', there's the trope of 'forbidden love'. It could be due to Kenny's family situation or some social circumstances in the fictional world. This trope creates tension and drama. Additionally, the 'reincarnation' trope might be used, where the reader and Kenny have a connection that spans multiple lifetimes. It gives a sense of fated love and mystery to the story.
A frequent trope is the 'fake dating' one. Maybe for some reason, Todoroki and the reader have to pretend to be a couple, perhaps to fool a villain or for a school event. As they pretend, they start to develop real feelings for each other. Also, the 'roommate' trope can be seen, where they end up living together either at the dorms or in some other situation, and that closeness leads to a romantic relationship.
Well, a typical trope is the 'discovery' trope. The reader usually discovers Herobrine in some unexpected way, like in an abandoned mine or a dark forest. Also, the 'mysterious allure' trope is common. Herobrine's mysterious nature draws the reader in, and they can't help but be intrigued by him. And there's often the 'transformation' trope too, where the reader might start to change or gain abilities after interacting with Herobrine.
The 'shared adventure' trope is also popular. Tracer and the reader embark on some exciting mission or journey together. During this time, they get to know each other better, and their relationship deepens. This could be anything from a stealth mission to retrieve some important Overwatch artifact to a journey through a strange and dangerous new area that has suddenly appeared in the Overwatch world.
A common trope is also the 'Outsider in a Strange World' for the reader. The reader is thrust into Sesshomaru's world, which is full of demons and magic. They have to adapt, and Sesshomaru often becomes their guide or protector in this new and dangerous environment. This trope allows for a lot of character development and relationship building between the two.