Family is a very common theme. Since the show is centered around a family, fanfictions often explore different aspects of family relationships, like sibling rivalries or the bond between parents and children. For example, in many fanfictions, we see how the kids deal with their parents' rules in new and creative ways.
One possible theme could be patriotism. Since he is a star - spangled man, it might be about his love for his country and how his plan is related to serving or protecting it.
Well, in arriere plan science fiction, time travel can be a big theme. It allows for all kinds of interesting stories, like going back in time to change history or seeing the future to prevent disasters. Genetic engineering is also a common one. It might show how humans can modify their own DNA for superhuman abilities or to adapt to new environments. And then there's the theme of post - apocalyptic worlds, where the Earth has been through some major catastrophe and survivors are trying to rebuild society.
One common theme is self - discovery. Since Multiple Man has the power to create duplicates of himself, often the stories explore how he discovers different aspects of his personality through his duplicates. For example, in some fanfictions, a duplicate might show a more aggressive side while the original is more reserved.
A common theme is the exploration of the subconscious. Since it's about a 'man of dreams', often the story dives into what lies beneath the surface of his mind.
A sense of isolation is a theme that shows up frequently. The other man may feel alone in his situation, set apart from the main couple or the group. He might struggle with finding his own identity outside of being 'the other man'. In some fanfictions, this isolation leads to his growth as he learns to rely on himself and become more independent.
One common theme is adventure. Many fanfictions send the Running Man members on exciting adventures, like exploring unknown places or going on treasure hunts. Another theme is competition, just like in the show, but sometimes with a new twist, like competing against supernatural beings. Friendship is also a big theme. They often show how the members support each other through tough challenges in the fanfictions.
One common theme is the moral implications of invisibility. The Hollow Man's condition makes him do things that question ethics. Another theme is power and its abuse. Since he is invisible, he has a certain power over others.
One common theme is heroism. Writers often depict jackieboy man's heroic deeds and how he saves the day. Another theme is friendship. His relationships with other characters in the story are explored.
One common theme is redemption. Since he has a somewhat morally ambiguous past, many fanfictions explore his journey towards making up for his wrongdoings. For example, in some stories, he helps a small town that has been oppressed by a tyrant.
One common theme is self - discovery. The characters often go through a journey of finding out who they really are within the context of the 'Pride of Man' world. Another theme is friendship. They form bonds and rely on each other in different situations.