Another plot point could be the way Harry tries to prevent Tom from turning into Voldemort. He might use his own experiences of fighting Voldemort to guide Tom away from the dark path. Maybe he shows Tom the consequences of dark magic through his memories, which could be a very emotional and impactful moment in the fanfiction.
One great plot point would be if the soulmate connection allows them to share each other's memories. Harry would see Tom's difficult childhood, which might make him more empathetic towards him. Tom, on the other hand, would see Harry's experiences of love and friendship. This could lead to a major change in Tom's character. Also, the plot could involve them trying to hide their relationship from Dumbledore, who might see it as a dangerous experiment that could disrupt the balance of the wizarding world.
One possibility is that Harry, having seen the dark path Tom Riddle took, decides to take him in early. He might teach Tom about love and friendship, things he lacked growing up. Harry could introduce Tom to the wizarding world in a more positive light, showing him the joys of Hogwarts and the value of good relationships, thus preventing him from turning into Voldemort.
One idea could be a time - travel fanfic where Harry goes back in time and tries to prevent Tom Riddle from becoming Voldemort. He could try to befriend the young Tom and show him a different path. Another could be a fanfic where Harry and Tom are somehow trapped in an alternate dimension together and have to work together to escape, all while Harry tries to understand what made Tom turn so evil. A third idea is a fanfic where Tom Riddle actually has a change of heart early on due to some magical accident that makes him experience a different kind of love and kindness, and Harry has to deal with this new Tom in Hogwarts.
One common theme is redemption. Since Tom Riddle becomes Voldemort in the original story, these fics often explore the idea of whether he can be redeemed with Harry's help. Another theme is the power of family. Harry, having grown up without a proper family for a long time, tries to create a loving family for Tom. And the theme of changing destiny also runs through. It's about whether they can change the dark future that was set for Tom in the original story.
As the story progresses, their relationship could become more complex. Harry might become a father figure to Tom, teaching him right from wrong. Tom, on the other hand, could start to see Harry as someone he can rely on, but also struggle with his own inner demons that might pull him away from Harry's influence.
One plot idea could be a time - travel scenario where Harry goes back in time and meets a young Tom Riddle. He tries to change Tom's path to prevent him from becoming Voldemort. Another could be a situation where they are magically bound together and have to learn to co - exist and understand each other's motives.
One plot idea could be a time - travel fanfic where Harry Potter goes back in time and tries to prevent Tom Riddle from becoming Voldemort. He could attempt to befriend the young Riddle and guide him towards a different path, perhaps by showing him the value of love and friendship early on.
One idea could be that Harry discovers a time - traveling device and goes back to Tom Riddle's childhood. He decides to take Tom under his wing and raise him with love and kindness. As a result, Tom doesn't become Voldemort and instead uses his magical abilities for good.
In a 'Harry Potter meets Tom Riddle' fanfiction, a really unique plot could be that Tom Riddle is reborn as a normal wizard without the dark desires due to some powerful magic. Harry Potter meets this new Tom and they become friends at Hogwarts. However, there are still some remnants of the old Tom's power that attract dark forces. So, Harry and Tom have to work together to fend off these threats while also exploring Tom's new identity and how it affects the future of the wizarding world. This would involve a lot of character development for both Harry and Tom, as they navigate their relationship in this new scenario.
One idea could be a time - travel plot where Harry goes back in time and tries to prevent Tom Riddle from becoming Voldemort. He could try to befriend the young Tom and show him a different path. Another could be a scenario where they are both put in a magically created alternate reality where they have to work together to escape.