One common theme is the exploration of his past trauma. Most of these fanfictions dig into what made him become a villain in the first place. Another theme is the power of forgiveness. Characters often have to forgive Shigaraki for his past deeds for his redemption to be possible.
The character of Tomura Shigaraki is complex. Fanfic allows us to explore different aspects of him that may not be fully shown in the original work. For example, his backstory can be delved into more deeply.
One great tomura shigaraki fanfic is 'The Redemption of Shigaraki'. It explores an alternate universe where Shigaraki tries to break free from his villainous ways. The story delves deep into his psyche and the events that led him to become who he is. It also shows his struggle to find a new path in a world that has been so unkind to him.
One great Shigaraki Tomura redemption fanfiction is 'A New Path for Tomura'. It shows his journey towards redemption as he starts to question his past actions and tries to make amends. The author does a wonderful job of portraying his internal struggle.
One idea could be exploring Tomura's backstory in more detail. Maybe show his life before he became a villain, his family situation, and what led him to the path of destruction. Another could be a 'what if' scenario, like what if Tomura was redeemed and joined the heroes. He could use his knowledge of the villains to help the heroes take down other threats.
Give Tomura a new power or ability that is unique to your fanfiction. This will set your story apart from others. For example, he could have the ability to control time for a short period.
Sure. Consider a girl who was in a club with her gay friends. One of them accidentally spilled a drink on her new dress. She could have been really mad....
No, it's not appropriate. Such stories are private and often involve sexual content. Sharing them in public violates privacy and social norms of propriety.