Love and redemption can also be a theme. Sometimes the OC's love for someone or something makes them try to redeem Tom Riddle from his dark path. This could be a romantic love for Riddle himself, or a love for the wizarding world that makes them want to change him. It adds a layer of complexity to the relationship between the OC and Riddle.
One great 'Harry Potter Tom Riddle Fanfiction' is 'The Heir of Slytherin's Redemption'. It shows a different side of Tom Riddle, exploring what could have happened if he had been given a chance at a different path. It has a really interesting plot that keeps you hooked from start to finish.
One popular idea in such fanfiction could be that Harry, through some magical time - turning or alternate reality scenario, discovers Tom Riddle before he fully becomes Voldemort. Harry might see the good in Tom that was lost over time and tries to prevent his fall to the dark side. Their soulmate connection could be a powerful force that draws them together, even as their destinies seem so opposed.
One great 'Harry Potter' Tom Riddle slash fanfiction is 'The Heir of Slytherin's Heart'. It delves deep into the complex relationship between Harry and Tom Riddle. The author does an amazing job of exploring their characters in a new light, with a plot that keeps you on the edge of your seat.
I'm not sure if it's popular. It's a rather niche and unusual concept, so it might not have a wide following. But in the world of fanfiction, there are always small groups of people interested in unique and out - of - the - ordinary ideas.
One popular type of fanfiction in this vein could be about Tom Riddle's interaction with magical creatures during his time at Hogwarts. Maybe he discovers a creature that has some connection to the dark arts and tries to use it for his own gain. For example, he might come across a basilisk in the Chamber of Secrets earlier than in the original story and attempt to control it to intimidate other students.
No, it's not common. Tom Riddle is a very complex and dark character. His main focus in the original story is on power, domination, and his own dark magic. Fanfiction is usually a creation of fans for fun and exploration, and it's hard to imagine the cold - hearted Tom Riddle having an affinity for it. However, in some very creative fanfictions, this could be a really different and thought - provoking take.
In a fanfiction centered around this, it could explore how Harry, as the Master of Death, has a deeper connection to the magical world's balance. Tom Riddle, on the other hand, might be obsessed with obtaining this power from Harry. The story could unfold as a battle of wills and magic, with Harry trying to protect the power while also saving those under Tom's influence.
Maybe Harry would teach Tom about the consequences of dark magic. Since Harry has faced Voldemort multiple times and seen the destruction caused by dark spells. He could use these real - life (well, in the wizarding world) examples to make Tom understand that there are other paths in magic that are more positive and life - affirming.
One great fanfiction is 'The Boy Who Lived Again'. It explores an alternate universe where Harry and Tom Riddle have to work together to save Hogwarts from a new dark threat. The author does an amazing job of portraying their complex relationship.