In the sentinel fanfiction, an interesting concept is the world - building. Authors often create a universe where Sentinels and Guides are part of a society that has its own rules and hierarchies. There could be a whole system of training for Sentinels and Guides, and fanfiction may explore how this system works. Also, the relationship between Sentinels and Guides can be seen in different ways, like some stories might focus on the romantic aspect, while others on the platonic or a more mentor - mentee type of bond.
One interesting concept could be the combination of the Sentinel's unique abilities with the technology and settings of Stargate. For example, how the Sentinel's heightened senses might interact with the alien technologies in the Stargate universe. Another could be the character crossovers, like how the Sentinel characters might fit into the existing Stargate teams and their dynamics.
One idea could be a crossover with a superhero universe. The Sentinel could team up with well - known superheroes to fight a common enemy. For example, joining forces with Superman to stop an alien invasion that threatens both their worlds.
There are often fanfictions that blend the Sentinel concept with Harry's connection to Voldemort. Maybe in a story, Harry's Sentinel powers are enhanced because of his link to the Dark Lord. This could lead to a series of battles where Harry has an edge due to his ability to sense danger and threats in a different way compared to normal wizarding abilities. It could also add a new layer to his relationship with his friends, as they have to adjust to this new aspect of Harry.
One idea could be that the Stargate team discovers a world where the Sentinel abilities are a natural part of the population. The Sentinels' powers could be used to help the Stargate team in their exploration and battles against alien threats. For example, their enhanced senses could detect hidden Goa'uld symbiotes or hidden traps in ancient ruins.
One interesting 'Star Trek Sentinel' fanfiction could be one where the Sentinel character has to face an unexpected alien threat that was not shown in the original series. It could explore how they use their unique abilities in this new situation.
In the backrooms fanfiction, the concept of the 'safe rooms' is really cool. These are areas within the backrooms where the entities don't seem to go or where the environment is a bit more stable. It gives the characters a brief respite from the constant danger and allows for some interesting plot developments as they plan their next moves.
One interesting concept is exploring different cursed techniques for the characters. For example, in some JJK fanfictions, Yuuji might have a cursed technique that allows him to communicate with the souls of the dead in a more detailed way. Another concept could be alternate universes where the characters have different relationships or roles. In some fanfictions, Megumi could be the main villain instead of an ally, which completely changes the dynamic of the story.
One interesting concept could be new micro - games. For example, a fanfiction might introduce a micro - game where the character has to dodge falling musical notes in a rhythm - based challenge. This would add a new and unique gameplay element to the Warioware universe.
One interesting concept could be alternate universes where the Planeswalkers have different alignments or abilities. For example, a fanfiction might explore a world where Jace Beleren is a villain instead of a hero. Another concept could be the exploration of the backstories of minor characters in the MTG lore. In some fanfictions, these characters are given more depth and their own story arcs that are not fully explored in the official lore. Also, there are fanfictions that focus on the relationships between different races in the MTG universe, like how elves and humans interact in a more detailed and unique way compared to the official stories.
Some interesting concepts in MJ fanfiction are those that re - imagine his concerts. For example, a fanfiction could describe a concert where he uses holographic technology in a way that was never possible during his lifetime. There are also concepts like exploring his family life in a more fictional and detailed way, showing his interactions with his siblings and parents in made - up scenarios that give new perspectives on his personal life.