One possible fanfic plot could be that Eren has been planning this for a long time. He might gather intelligence about the Colossal Titan's weaknesses. Then, in a fierce battle, he manages to get close enough to deliver a fatal blow. This could be a very emotional moment for him as well, considering the history between them.
In the 'Attack on Titan' series, there is no clearly defined canon romantic interest for Levi. His character is mainly focused on his role as a soldier and his fight against the Titans. However, many fans like to ship him with various characters in fan - made love stories.
There's also 'Levi's Redemption'. This fanfic focuses on Levi's past traumas and how he overcomes them. The author does an amazing job of portraying his complex personality and his relationships with other characters in a very believable way. It's a must - read for any Levi fan.
In a Levi love story within Attack on Titan, Levi is often seen as a complex and stoic character. His love, if there was one, would be filled with his typical no - nonsense attitude. He might show his love through protecting someone in his own gruff way, like how he protects his comrades in the Survey Corps.
A great 'Attack on Titan Levi Fanfic' usually has a deep understanding of Levi's character. For example, it should capture his stoicism, his loyalty, and his no - nonsense attitude. If it can show his growth or how he deals with his past, that's even better.
The main members include Levi, of course. Then there's Petra, who is a skilled fighter. Oluo is also in the squad, known for his somewhat over - the - top attempts to mimic Levi. Eld and Gunther are also important members, each bringing their own strengths to the squad in the fanfics.