Some smaller, more niche fanfiction communities or forums dedicated to the fandom that Kyo and Megumi belong to might also have some great finds. You can search for relevant forums through search engines and then look for the fanfiction section within those forums.
Well, 'Love in the Shadows' is also quite interesting. It sets the story in a more mysterious and dangerous setting. Kyo and Megumi find themselves in a situation where they have to rely on each other completely. The fanfiction is full of suspense and the development of their relationship is intertwined with the plot twists.
The fanfiction 'Yuji x Megumi: The Unseen Connection' is quite good. It takes a unique approach by exploring a hidden bond between them that is not as obvious in the original work. It makes you look at their relationship in a whole new light.
You can try Archive of Our Own (AO3). It has a vast collection of fanfictions, including many about Yuji x Megumi. The site is well - organized, and you can easily search for the specific pairing you're interested in.
As of the latest chapters I've read, Megumi is still alive in the manga. Usually, such major character deaths are significant plot points and would be well-publicized if they occurred.
Itadori did indeed die in the manga. His death had a significant impact on the story and the other characters. It was a turning point that led to many new developments in the plot.
Itadori is quite powerful in the manga. His strength lies not only in his physical abilities but also in his determination and the unique powers he acquires along the way. He's able to face off against formidable opponents and come out on top more often than not.
Well, Itadori's journey in the manga has been full of surprises. He's had to deal with curses, make difficult choices, and his relationships with other characters have evolved in complex ways. There have also been moments of great personal sacrifice and growth for him.