Well, there could be a plot about a group of people who are lost in a vampireness - filled world. They try to find a way to co - exist with vampires, perhaps by finding a cure for vampirism or creating a peaceful treaty.
One interesting plotline could be a human getting lost in a vampire - dominated city. They have to navigate through vampire politics and avoid being turned against their will.
Maybe there's a plot where a character is lost in the vampireness in terms of falling in love with a vampire but also being afraid of the dark side of their nature. It's like a struggle between love and fear.
Another common character type is the vampire - hunter. They might be lost in their own way, in a world where the lines between good and evil vampires are blurred. They could start off trying to kill all vampires but then have a change of heart after getting to know some of them better.
Perhaps in this fanfiction, Naruto is lost in the darkness because of a powerful enemy's jutsu that has separated his spirit from his body. He then has to navigate a shadowy realm, meeting strange and mysterious beings that either help or hinder his journey back to the real world.
One possible plotline could be the son having unique magical abilities that are different from Harry's. For example, he might be able to communicate with magical creatures in a way no one else can. Another could be the son getting lost in a time - traveling adventure and meeting Harry's parents. Or perhaps he discovers a hidden part of Hogwarts that holds a great secret related to his family.
Well, perhaps a plotline where fem Harry uses her unique magic abilities in ways the Lost Boys have never seen before. This could lead to her being both respected and feared within the group. She may also face challenges from outside forces that target her because of her association with the Lost Boys, and she has to fight to protect them and herself.
Perhaps a plotline where the Lost Tribe of the Sith has to face a new threat from outside their territory. This could force them to form alliances they never thought possible or use their Sith powers in new and creative ways. For example, they might have to team up with some Jedi who also have an interest in the new threat. The interactions between the two opposing forces would be full of tension and moral dilemmas.
One possible plotline could be that the long lost sister was separated from Harry due to a powerful dark wizard's curse. She might have been raised in a different magical community, like a far - flung wizarding village in Scotland. When she discovers her true identity, she has to quickly adapt to the wizarding world Harry is familiar with, facing challenges like learning about Hogwarts and its traditions.
One possible plotline could be that Sakura realizes she has lost her chance with Naruto after he has found love with someone else. She then has to deal with her unrequited love and find a way to move on. Maybe she focuses more on her medical ninja skills and becomes a renowned healer in the village.
There could be a plotline where the Overgeared world is invaded by an outside force, something not from the game itself. This would force Grid and the other players to unite in a different way than before, using their skills and creativity to defend their virtual home. They might have to adapt to new strategies and form alliances with unexpected characters.
A 'lost naruto fanfiction' might involve Naruto being lost in an alternate reality where the Akatsuki are the good guys. He is completely confused at first, but as he spends time there, he starts to understand their motives. He has to decide whether to try and change this reality back to what he knows or accept the new order. It could be a story full of moral dilemmas and exciting battles.
One interesting concept could be time travel anomalies. For example, characters might find themselves in different historical periods without any clear explanation at first. This creates a sense of mystery and adventure as they try to figure out how they got there and how to get back.