There could be a story where Luna has a strange vision about the Marauders and she drags Harry, Hermione and Neville along to investigate. As they dig deeper, they find out that there are lingering spells from the Marauders' time that are now causing chaos in Hogwarts. They have to work together to reverse the spells and in the process, they learn a great deal about the Marauders and themselves.
Imagine a fanfiction where Harry, Hermione, Neville and Luna are all put into a magically - created alternate reality where the Marauders are still alive. They must find a way to get back to their own reality while also helping the Marauders deal with a threat that exists in this alternate world. This would allow for a lot of interesting character interactions between the different generations of wizards.
A plotline could be that the Marauders' old secret hideout is discovered by Harry, Hermione, Neville and Luna. Inside, they find a series of enchanted journals that detail the Marauders' adventures and also some unfulfilled plans. They decide to carry out these plans in the present day to help fight against a new dark force that has emerged in the wizarding world.
One idea could be a time - travel fanfiction where Harry, Hermione, Neville and Luna are sent back in time to the era of the Marauders. They could interact with James, Sirius, Remus and Peter, and perhaps change some of the events that led to the downfall of the Marauders. For example, they could prevent Peter from betraying his friends.
Perhaps a plotline where Hermione has to solve a mystery that the Marauders were involved in. The Marauders might have left behind some clues that only Hermione, with her sharp intellect and research skills, can decipher. This could bring her closer to understanding their true nature and the secrets of their time at Hogwarts.
In some fanfictions, their twin status might change the way the Sorting Hat sorts them. Instead of Harry going to Gryffindor, perhaps they both end up in Hufflepuff because of their shared values that are more in line with that house. This could lead to a completely different story arc where they are known for their loyalty and hard work rather than Harry's typical Gryffindor - like heroics. Also, their family relationships would be different. The Dursleys might have to deal with two magical children instead of one, which could change the way Harry (and Neville) grow up and view the Muggle world.
In some fanfiction, they could be on a quest to find a hidden magical artifact that was once owned by a great wizard. Along the way, they encounter various magical creatures and overcome obstacles using their combined skills and courage. Neville's knowledge of Herbology and Harry's combat skills would make them a great team. For example, Neville could use his knowledge of plants to create barriers or distractions while Harry battles any dark wizards or dangerous creatures that try to stop them.
One possible plotline could be Harry and Neville teaming up to discover a new spell or magical ability that has been long forgotten in Hogwarts. They might explore the Forbidden Forest together in search of ingredients for a potion related to this discovery.
One great Neville and Luna fanfiction is 'The Adventures of Neville and Luna'. It beautifully portrays their friendship as they explore the magical world together, encountering strange creatures and solving mysteries. The author does a wonderful job of capturing their individual personalities.
One interesting plotline could be how Harry's personality is shaped differently. With the Marauders' influence, he might be more mischievous and confident. For example, he could learn pranks from them at a very young age and use them to outwit his enemies later on.
Well, in some fanfictions, there are plotlines about the Marauders getting involved in some sort of mystery at Hogwarts that is deeper than the normal school drama. For example, they might uncover a dark secret about one of the teachers or a hidden part of the castle. This could lead to them having to use their combined skills and friendship to solve the problem and keep the school safe.
One possible plotline could be that Luna and Hermione are studying together in the Hogwarts library late at night. They start discussing their different views on magic and life, and as they get closer in their conversation, an unexpected moment of closeness leads to a kiss. It could be a spontaneous expression of their new - found understanding and connection.
One great Hermione and Neville fanfiction is 'The Unlikely Bond'. It explores their friendship in a post - war Hogwarts setting, showing how they support each other through the rebuilding process. Another one could be 'Growth in the Greenhouse' which focuses on their shared love for Herbology and how that brings them closer. There's also 'A Different Path' where Neville and Hermione team up for a secret mission and discover new aspects of each other along the way.