A popular trope is the 'what - if' scenario. What if Sirius escaped earlier and had a chance to befriend Ginny? There's also the 'character development' trope. Writers often explore how Ginny grows and changes because of her interactions with Sirius. And the 'mystery - solving' trope can be seen when they team up to solve some mystery in the wizarding world. These tropes add depth and interest to the fanfictions about them.
One popular trope is time - travel. For example, Sirius might be sent back in time and meet a younger Ginny. Another is the 'protective Sirius' trope, where he looks out for Ginny in some dangerous situation. Also, the 'mentor - mentee' relationship is quite common, with Sirius guiding Ginny in magic or dealing with the wizarding world's challenges.
A possible plot could be a time - travel story. Ginny accidentally travels back in time and meets a young Sirius Black. They team up to change an event in the past that has far - reaching consequences for the wizarding world in Ginny's time. Or perhaps Sirius, after his death, is able to communicate with Ginny in a way similar to how he did with Harry. He gives her advice on dealing with her relationship problems, like her feelings for Harry and how to handle jealousy among friends.
One plot idea could be that Sirius, who has a connection to Ginny through his friendship with the Weasley family, starts to mentor Ginny in some magical skills. He could share his knowledge of the more dangerous aspects of magic, like dark wizard - fighting techniques, which Ginny is eager to learn. This could lead to a strong bond between them as they train together.
Well, a good place to start looking for Ginny Weasley and Sirius Black fanfiction is Tumblr. There are many fanfiction blogs dedicated to the Harry Potter fandom. You might have to dig a bit through the posts, but often they share links to great fanfictions. Also, some Harry Potter - themed Facebook groups might have members sharing their own or favorite fanfictions about these two characters.
Their relationship can also add depth to the wizarding family dynamic. Sirius, being part of the Black family, and Ginny, a Weasley, can bridge the gap between two important wizarding families. They can share stories and traditions, which can be really interesting in fanfiction. For instance, Sirius could tell Ginny about the Black family secrets, and Ginny could share the Weasley family's warmth and closeness with him. This can create a unique bond between them that enriches the story.
Another place to find such fanfiction is Archive of Our Own (AO3). Just search for Ginny Weasley and Sirius Black. You'll find stories that deal with various aspects of their characters. Maybe a story where they team up to solve a mystery in the wizarding world, without any inappropriate themes. It's a great platform with a wide range of fan - created content.
One popular trope is the 'enemies - to - reluctant - allies'. Given their history of animosity, it's interesting to see them pushed into a situation where they have to cooperate. Another is the 'redemption arc' for Snape, and Sirius being a part of that in some way, either by initially opposing it and then coming around, or being a catalyst for Snape's change.
Suppose they met during a Quidditch tournament in another country. Sirius, having been a Quidditch fan himself, would notice Ginny's skills on the broom. He would approach her to compliment her performance. Ginny, knowing of Sirius' reputation as a brave wizard, would be flattered. Their relationship might develop as they share their love for Quidditch and stories of their adventures. Sirius could share his experiences of playing Quidditch at Hogwarts in his youth, and Ginny could tell him about her current team. Over time, they could become close friends who support each other in their Quidditch and magical endeavors.
Well, they could be united through a shared love of adventure. For example, they both hear about a hidden magical place and decide to explore it together. Along the way, they face various challenges that force them to rely on each other, thus deepening their relationship.
One popular trope is the 'Power - up' trope. In Black Marvel fanfictions, characters like Black Panther or Storm might gain new powers or enhance their existing ones in unique ways. For example, Black Panther could discover a new form of vibranium - based power.
The 'time - travel' trope is also common. As I mentioned before, it can be really interesting to see them go back in time and interact with the younger versions of themselves or other characters. It often leads to a lot of plot twists and revelations.