Fanfiction about Harry Potter being the son of James and Sirius: What are some interesting plot ideas?

One interesting plot idea could be Harry growing up with Sirius's wild and rebellious spirit. He might be more daring in his adventures at Hogwarts, perhaps even forming a secret group earlier to oppose the Dark Arts in a more proactive way. Another could be the exploration of how Sirius's family history and his status as a Black influence Harry's view of pure - blood ideology. He could struggle with the expectations that come with being a Black heir while also trying to uphold the values he learned from his friends and Dumbledore.

A third plot idea is that Harry's connection to Regulus Black affects his relationship with Sirius. Instead of being his godfather, Sirius could be more of an uncle figure. And Harry could be more involved in the Black family affairs. He might learn about the family's dark secrets and try to redeem the family name. This could involve dealing with the Black family's old enemies and allies, and Harry would have to navigate this complex web of relationships while still being the Chosen One.

A possible plot idea is that Harry discovers secrets about his father's side of the family. He could find out about Gideon Prewett's unfulfilled quests or his relationships with other magical families. This could lead him on a journey to complete something his father started. Also, his magical abilities might be affected. He could have a natural affinity for certain spells that were unique to the Prewett family, which could set him apart from the original Harry Potter in the books.

A possible plot could be that Harry's powers are not like the normal wizarding powers. Instead of using a wand in the traditional way, he might be able to draw on the power of Thanatos and Hecate in more instinctive ways. For example, he could use his connection to Thanatos to temporarily halt the aging process of an injured creature or use Hecate's power to create powerful illusions that are not just visual but can also affect the mind. This would make him a target for dark wizards who want to use his powers for their own evil ends, and he has to fight to keep his powers safe while also learning to control them.

One plot idea could be that James and Lily go into hiding with Harry instead of being killed. They could raise him in a secret location, teaching him magic away from the prying eyes of Voldemort. Another could be that they fake their deaths and then work secretly to undermine Voldemort's forces. For example, they could use their knowledge of the Death Eaters to expose their plans and turn some of them against Voldemort.

Well, a plot might involve Harry - now James - trying to change the fate of his family. He could focus on protecting Lily in a different way than James did in the original story. Maybe he'd use his knowledge of magic from his past life to create new spells or defenses. Also, his relationship with Snape could be very different. Since he was Harry before, he might understand Snape's feelings better and try to make amends or change the animosity between them.

One plot idea could be that Fem Harry Potter travels back in time and meets James Potter. They form an unexpected friendship and she has to navigate the differences between their time periods while also dealing with her own identity in this new situation.

One possibility could be that he was grounded for sneaking out to play Quidditch when he was supposed to be doing his homework. Maybe he got caught by his parents and was then restricted to the house for a week.

A possible plot is that Sirius Black gets a tip - maybe from an unexpected source like a house - elf - that Harry Potter is being lured into a trap. Sirius races against time to reach Harry. When he does, Harry is in a wizarding duel with some powerful dark wizards. Sirius jumps into the fray, using his own powerful magic skills. He manages to deflect the dark spells aimed at Harry and then they both apparate away to safety. This could lead to a deeper bond between them and also new revelations about Sirius' past that help Harry in his fight against Voldemort.

A major plot point would be the family dynamic. Harry would grow up in a complete family with his father and Sirius as his guardians. There would be a lot of love and support, but also some sibling - like rivalry between Harry and Sirius perhaps. The story could also explore how the presence of James affects Lily's memory. Does Harry grow up hearing more stories about his mother? And how does that shape his view of love and sacrifice? Also, how do they handle the secrecy of Harry's identity? Since James and Sirius are more bold, they might take different precautions compared to what Dumbledore had planned in the original story.