A good fanfiction in this regard could be one where the dog house is a place of mystery. Sirius Black discovers some secrets about his family or the wizarding world while spending time in or around the dog house. It could start with him simply using it as a shelter but then unfold into a much larger adventure. You can also ask in Sirius Black - focused fan communities on social media platforms for recommendations on such fanfictions.
I'm not sure of a specific one titled exactly like that, but there might be some on fanfiction.net. You can search for tags like 'Sirius Black' and 'dog house' to find relevant stories. Usually, stories that explore Sirius's time as a dog and his connection to a particular place like a dog house can be really engaging.
One great Sirius Black dog fanfiction is 'The Padfoot Chronicles'. It delves deep into Sirius's time as Padfoot, his relationship with the Marauders during those moments, and how his animagus form affected his experiences. Another is 'Padfoot's Redemption' which focuses on Sirius trying to make up for lost time after his long imprisonment.
One interesting fanfiction could be where Sirius Black uses the dog house as a secret hiding place from the Ministry. He might transform into his dog form and stay there when he feels threatened. Another could involve him reminiscing about his time as a dog while sitting near the dog house at Grimmauld Place.
One great Sirius Black and OC fanfiction is 'A Sirius Love'. It beautifully portrays the relationship between Sirius and the original character. The OC in this story has a unique backstory that draws Sirius in, and their interactions are full of emotion and depth.
One great 'bella and sirius black fanfiction' is 'A Different Path'. It explores an alternate universe where Bella has a unique connection with Sirius Black. The story is well - written, with great character development and an engaging plot that keeps you hooked from the start.
There is a fanfiction called 'Sirius Black: The Unseen Years'. It fills in the gaps of his life that the original books didn't fully explore. It's fascinating to see how the author imagines his life during those unaccounted - for years. Additionally, 'Sirius and the Forbidden Magic' is an action - packed story where Sirius discovers a new and dangerous form of magic and has to deal with the consequences. It really amps up the adventure aspect of his character.
A really good one is 'In the Company of Padfoot'. It tells the story of Sirius's time as a dog and how his friendships are not only maintained but also enhanced. For example, he has a special friendship with a young wizard who is an outcast, and together they learn a lot about acceptance and loyalty. The story does a great job of highlighting the importance of friendship in Sirius's life, both in his human and dog forms.
There's also 'A New Perspective' which delves into how Draco's view of Sirius changes when he discovers Sirius's past. It's a very character - driven story that really explores their personalities. Sirius, with his wild and rebellious nature, and Draco, who has been brought up in a very different environment, find common ground in unexpected ways.
There's also 'Padfoot Returns'. In this fanfiction, Sirius Black comes back in a rather unexpected way after his supposed death. It's full of action and also explores his feelings towards Harry Potter and how he tries to protect him in this new situation.
One great Sirius Black fanfiction is 'All the Young Dudes'. It delves deep into Sirius's character, his relationships with his friends at Hogwarts, and his experiences during that time. It's really well - written and captures the essence of the Marauders' era.
I really like 'Remus and Sirius: Bond Beyond School'. This fanfic focuses on how their bond grew stronger over the years, even with all the difficulties they faced. It has some really well - written scenes that show their loyalty to each other. And then there's 'Sirius Black, Remus Lupin and the Mystery of the Forbidden Forest' which is an exciting read. It involves them going back to Hogwarts to solve a mystery in the forest that has ties to their past.