Obviously, Harima and Eri are the central figures. Harima might be a bit of an underdog, trying to find his place in the world. Eri could be a popular girl who has a hidden side that only Harima gets to see as their relationship develops in the fanfic.
The theme of family or a found family is also common. Deku and Eri can be seen as forming a sort of family unit. Deku takes on a big - brother or father - like role for Eri, and they develop a deep bond that is similar to what one would find in a family.
Mineta could be redeemed in a 'bnha mineta redemption fanfic' by having a character development arc. He might start to engage in more heroic deeds. Like, he could sacrifice his own safety to protect others during a battle. This would show that he is growing and becoming a better person, which would lead to his redemption.
One popular theme could be friendship development. Maybe Harima and Eri start as acquaintances and gradually become really good friends, sharing secrets and having adventures together. Another theme might be about achieving common goals. For example, they could be working towards a school project or a community event. Also, themes of self - discovery can be present. As they interact, they might learn more about themselves and their own capabilities.
Mineta could react with a mixture of embarrassment and defiance. He's a proud character in his own way. So when All Might yells at him, he might try to put on a brave face and argue back a little. But deep down, he knows he's in the wrong. Eventually, he'll break down and start crying, realizing that he has disappointed not only All Might but also his classmates who are all striving to be heroes.
Definitely the teachers. They would play a crucial role in the expulsion process. For example, Aizawa might be the one who has to enforce the decision. He's always been strict about behavior and academics in the classroom.
There's also 'Deku and Eri's Adventures'. In this fanfic, they go on various adventures together in the world of heroes. It's full of exciting action scenes and also some really sweet moments between the two characters.
You can also ask in fan communities dedicated to the source material of eri and nozomi. Fans there might be able to recommend some great non - lemon fanfics. Maybe there are some stories that explore their backstories together, or how they help each other through difficult times. These kinds of fanfics can be really interesting and engaging without any inappropriate content.
Since lemon fanfics usually contain adult - like content which is not suitable to promote, I would suggest you search for regular eri x nozomi fanfics. Try using tags on platforms such as FanFiction.net. You might find some great stories that focus on their friendship, adventures or emotional bond without any improper elements.