One common plotline is Regulus joining the fight against Voldemort after faking his death. He uses his knowledge of the Death Eaters to help the Order of the Phoenix. Another is his relationship with Sirius. They get a chance to reconcile and work together.
A really interesting plotline is when Regulus is alive and has to deal with the aftermath of his actions as a Death Eater. He tries to make amends to the families he's hurt. And sometimes, there's a romantic plotline where he falls in love with a character who helps him through this redemption process. It could be a Muggle - born witch or someone from the Order. There are also stories where he discovers secrets about his family that change his perspective on everything.
One idea could be that Regulus, after faking his death, has been secretly working against Voldemort all this time. He could be gathering intelligence and using his knowledge of the Death Eaters to undermine their plans. Another plot could involve Regulus coming back into the wizarding world and having to deal with the changed perception of him, as everyone thought he was dead. He might also have to face his family again, especially Sirius, and deal with the complex emotions that come with it.
One interesting plotline could be about the characters' journey to discover the true meaning of love in a post - apocalyptic world. Maybe they find that love can exist even without all the trappings of modern society.
A plotline could involve Harry's discovery of his true parentage. Maybe he grows up thinking he's just James' son, and then finds out about Regulus. This could lead to a journey of self - discovery, as he tries to understand the parts of himself that come from both his fathers. He might also face opposition from some in the wizarding world who can't accept this unusual family situation.
Sirius would be shocked at first. He had grieved for his brother, so his return would bring a mix of emotions like anger for being left in the dark and joy at having his brother back. Their relationship would be complex as they'd have to deal with the past. Sirius might also be a bit jealous if Regulus was getting more attention or if he seemed to have a better plan against Voldemort.
Well, there are some really good Regulus Black alive fanfictions on Tumblr as well. There are often fic recs (recommendations) where users share their favorite stories. Some of these fics might be part of a series or have spin - offs that you can explore too. It's a great place to find unique takes on the idea of Regulus being alive.
Another plot could be that Regulus, reborn, has memories that are fragmented. As he tries to piece them together, he discovers new secrets about the Black family's past that could change the way the wizarding world views his family. Along the way, he forms unexpected alliances with those who were once his enemies.
One idea could be that Regulus Black, despite being a Slytherin in the original story, has a secret admiration for Gryffindor values. So, in the fanfiction, he could start secretly taking part in Gryffindor - like adventures. For example, he might help Gryffindor students in a fight against some dark forces in the Forbidden Forest.
One plot idea could be that Regulus returns as a ghost and tries to guide Harry Potter in secret. Another could be his return through some dark magic experiment gone wrong but he has new powers and knowledge. Maybe he returns to expose the true nature of certain Death Eaters who are still at large.
Hermione is a Muggle - born witch who is highly intelligent and a strong advocate for justice. Regulus, on the other hand, came from a pure - blood family with a dark past. In fanfiction, this contrast allows for some really deep exploration. Their relationship can be a way to bridge the gap between different wizarding ideologies. Hermione can introduce Regulus to new ways of thinking, and he can show her the inner workings of the old pure - blood society. It's this clash and potential harmony that makes the pairing so interesting.
Well, for one, Regulus was a character who had a lot of potential that was cut short in the original story. Fanfiction about his portrait lets us imagine what could have been. It can show his growth, his regrets, and his hopes. And the portrait aspect adds a touch of the supernatural. It can be a symbol of his lingering presence in the wizarding world, and seeing how different authors play with that concept is really cool.