Sukuna does die in the manga. The way it happens is quite dramatic and ties in with many other elements of the story, adding depth and tension to the overall narrative.
You can try searching on some popular fanfiction websites like Archive of Our Own (AO3). It has a vast collection of fanfictions from various fandoms, and there's a good chance you'll find ones related to 'Izuku has Sukuna' there.
Rejecting the Saintess was a fantasy web novel. The author was a money tree. The story described the main character, Ji Yunshan, who had transmigrated to the Big Dipper Continent and became the direct descendant of the Ji Family's Patriarch. He was also engaged to the Feng Family's Patriarch. However, Ji Yunshan chose to reject the marriage, which triggered a series of story plots. The specific plot and development required reading the full text of the novel.
Here are a few recommended novels that refuse to be villains (closed):
1. "But I Refuse to Transform the Villain": This novel tells the story of the protagonist, Jiang Xuan, who transmigrated and became the villain. He embarked on the path of redemption and raised a little villain, but in the end, the villain became his stumbling block and stabbed him to death. After Jiang Xuan's rebirth, he had entered the world's major sects with a new identity and lived an idle life. This novel was written by Eternal Glacier.
2. "Refusing to be the villain's bootlicker at the beginning of the game, the female protagonist panicked!" The main character of this novel was Gu Yunyan Anran. She told the story of her refusal to become a villain and bootlicker. The novel was set in the city and depicted a beautiful and pure love story. This novel was written by Qingfeng and White Horse.
3. [Villain Refuses to Be Cannon Fodder (Transverse Book)]: The main character of this novel is Yun Xinzhao, and it tells the story of her refusal to become cannon fodder. The theme of the novel was to travel through time and space, bringing the readers a happy reading experience. This novel was created by a homonym.
Please note that the novels recommended above have all been completed and can be exempted from reading.
No. Ryomen Sukuna is a fictional character from Japanese mythology and modern manga/anime. He doesn't have a basis in a true historical event or person.
Nope. Ryomen Sukuna has no basis in reality. It's a product of the creative minds of the writers and illustrators who designed a captivating fictional character for the enjoyment of the audience.