Well, a popular trope is the 'love triangle' within the harem. Even though it's a harem, there might be a more intense connection between Link and two of the harem members, creating drama. Also, the 'shared adventure' trope. Link goes on adventures and the harem members are part of those adventures, strengthening their bonds. And there's the 'rivalry within the harem' where members might compete for Link's attention in different ways.
In Link x Harem Fanfic, the 'transformation' trope can be seen. Maybe a character in the harem transforms to gain power to protect Link. The 'mysterious new member' trope is also there. A new character suddenly enters Link's harem, bringing new storylines. And the 'cultural exchange' trope can occur when the harem members are from different cultures, and they all interact with Link, creating interesting situations.
One popular trope is the 'stranger to lovers' trope. In many 'Link x Reader Fanfic', the reader character starts as a stranger to Link, and through their shared adventures and experiences in Hyrule, they fall in love. It's a classic and always makes for an interesting read.
One popular trope is the 'new kid in school' scenario. The male reader character is new to the school, which makes it easier for him to get involved with different female characters. Another is the 'club recruitment' trope, where the male reader is recruited into various school clubs and meets the harem members there. Also, the 'accidental encounter' trope is common, like bumping into a girl in the hallway and starting a relationship that way.
One popular trope is the 'enemies to allies' story. Since Octolings were initially enemies in the game and Agent 3 is a hero, their journey from fighting each other to working together can be really engaging. Another is the 'discovery of a new world'. Agent 3, coming from one side, and the Octoling from another, can explore each other's cultures and worlds, which adds depth to the fanfic. And of course, there's the 'forbidden love' trope. Their different origins make a relationship between them seem taboo in some ways, but that just makes it more exciting for readers.
One popular trope is the 'stranger in a strange land' where the OC is from another world or time and Link has to help them adjust. Another is the 'love at first sight' trope, which is quite common in many fanfictions. And then there's the 'OC with a special power' trope, where the OC has some unique ability that either helps or hinders their relationship with Link.
Well, a common trope is the 'discovery' trope. Steve might gradually discover Eddie's true vampire nature, which could lead to a lot of drama and tension. There's also the 'redemption' trope. Maybe Eddie, as a vampire, has a dark past, but through his relationship with Steve, he finds a way to redeem himself. And of course, the 'opposites attract' trope is often used, as they are likely to have very different personalities and lifestyles.
One popular theme is the idea of Link as a protector in the context of his harem. Since he is a hero in the game, this often translates into him safeguarding the characters in his harem from various threats in the fanfic world.
Another trope is the 'domestic bliss' trope. After getting married, the fanfictions will explore their day - to - day life. This could include things like Link learning Zora traditions from Mipha, or them going on adventures together as a married couple. It shows a more peaceful and loving side of their relationship compared to the often - dangerous adventures Link has in the main game.
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.
One popular trope is the 'fish out of water' situation. Since they are from different game worlds, when they are thrust into each other's world or a new world together, they have to figure out how things work. For example, Link might be confused by the advanced technology in Cloud's world, and Cloud could be baffled by the magic and creatures in Link's Hyrule.
Well, there's the 'unexpected - attraction' trope. It could be that Spider - Man initially has no intention of being in a harem - like relationship, but the other characters' unique qualities draw him in. The 'rival - turned - ally - in - love' is also seen often, where a character who was once an enemy or rival becomes part of the harem. And then there's the 'group - mission - bonding' trope, where going on missions together as a group makes the relationships in the harem stronger.