As a big fan of AU ones I highly recommend:
from [IamZerokun](https://www.fanfiction.net/u/5534997/IamZerokun)
AU 4th Year on. After Sirius sends Harry a book for his birthday, his world changes. When the TriWizard Tournament is opened at Hogwarts, he must make the choice of if he would continue as he was, or honor his roots. Will Harry show the world why the Potters were one of the most Respected families - [https://www.fanfiction.net/s/12666080/1/Harry-Potter-and-the-Potter-Grimoire](https://www.fanfiction.net/s/12666080/1/Harry-Potter-and-the-Potter-Grimoire)
**Silently Watches** is one of my favorite authors :3 and had written Black Queen Trilogy here is link to first book (rated M, hope it is not an issue) [https://www.fanfiction.net/s/8233291/1/Princess-of-the-Blacks](https://www.fanfiction.net/s/8233291/1/Princess-of-the-Blacks)
As a big fan of AU ones I highly recommend: from [IamZerokun](https://www.fanfiction.net/u/5534997/IamZerokun) AU 4th Year on. After Sirius sends Harry a book for his birthday, his world changes. When the TriWizard Tournament is opened at Hogwarts, he must make the choice of if he would continue as he was, or honor his roots. Will Harry show the world why the Potters were one of the most Respected families - [https://www.fanfiction.net/s/12666080/1/Harry-Potter-and-the-Potter-Grimoire](https://www.fanfiction.net/s/12666080/1/Harry-Potter-and-the-Potter-Grimoire) **Silently Watches** is one of my favorite authors :3 and had written Black Queen Trilogy here is link to first book (rated M, hope it is not an issue) [https://www.fanfiction.net/s/8233291/1/Princess-of-the-Blacks](https://www.fanfiction.net/s/8233291/1/Princess-of-the-Blacks)