Well, there's 'Harry's Dada Adventure with the Professor'. In this fanfic, Harry discovers some extraordinary things about the Dada professor that changes his perspective on magic entirely. It has a really engaging plot that keeps you hooked from start to finish. There's also 'The Dada - Harry Connection' which focuses on how the professor's teachings in Dada impact Harry's growth as a wizard.
Well, there are many great fanfictions out there. For 'Harry Potter' with a focus on the DADA professor, you can look on platforms like Fanfiction.net or Archive of Our Own. However, I'm not as familiar with specific crossovers with 'Bleach' in this regard. But generally, you can search for tags like 'Harry Potter DADA professor crossover Bleach' to find some interesting reads.
Another challenge would be keeping up with the ever - evolving dark arts. Harry has had his share of battles, but new threats are always emerging. He would need to constantly study and research to stay ahead, so that he can teach his students the most effective ways to defend themselves. Also, he has to balance his duties as a professor with his own personal life and possible future adventures.
Perhaps Harry would try to make the DADA classroom a more inclusive and safe space. He had faced so much discrimination and danger himself when he was a student. So he would ensure that no student, whether they are Muggle - born or pure - blood, would feel left out or threatened in his class. He could also use his Gryffindor courage to inspire students to stand up against any form of dark arts or bullying.
There might be a fanfiction where the DADA professor is actually an undercover wizard from a far - off land. He brings in unique teaching methods and magical creatures from his homeland, which both fascinates and challenges the students at Hogwarts.
You could start by searching on platforms like Archive of Our Own. There might be some great 'harry teaches dada fanfiction' where the author delves deep into how Harry reforms the DADA curriculum. Maybe he focuses more on practical self - defence against dark magic rather than just theory, and the story shows how the students respond to this new approach.
A really interesting plot could be a fusion of the two worlds. For example, the Hogwarts students are suddenly faced with Hollows attacking the school. The DADA professor, with their knowledge of both magic and the Bleach universe (maybe they have some past connection), has to train the students to fight in a new way, combining magic and Soul Reaper techniques. This would involve a lot of character development as the students adapt to this new threat and the new ways of fighting.
There are fanfictions where the DADA professor is an old wizard who has fought in many magical wars. He has countless stories to tell and his teaching is filled with real - life examples of facing dark magic. His wisdom and experience make him a very appealing DADA professor in these fanfictions.
One popular 'Harry Potter and Professor Sinistra fanfiction' is 'The Stargazing Sessions'. It focuses on Harry's after - class interactions with Professor Sinistra where she shares her deep knowledge of astronomy in a more personal way. Another one could be 'Sinistra's Secret Lessons' which might explore some hidden aspects of her character and how she influences Harry's understanding of the wizarding world.
One great 'Harry Potter Professor Vector fanfiction' is 'The Hidden Secrets of Professor Vector'. It delves into her possible past adventures at Hogwarts before the main series events. It shows her as a young and ambitious witch with her own set of challenges.
I'm sorry, but 'lemon' in fanfiction often implies adult or inappropriate content. I can't recommend such works. However, you can look for general Harry Potter fanfiction about Harry and Professor Sinistra that focuses on their interactions in a non - inappropriate way, perhaps on fanfiction platforms like Archive of Our Own by filtering for appropriate ratings.