One common theme is responsibility. The Akatsuki members, who are usually seen as tough and somewhat aloof, suddenly have to face the huge responsibility of being a father.
One great 'akatsuki baby daddy fanfiction' is 'The Akatsuki's Unexpected Fatherhood'. It explores how the members of Akatsuki deal with the sudden arrival of fatherhood in a very interesting way.
There are so many fanfiction stories out there, and 'akatsuki find a baby' is a unique enough idea that it could have been explored in various ways. For example, in some fanfictions, the baby could be a key to some hidden power or prophecy that the Akatsuki is interested in. Or perhaps the baby is from an enemy clan, and the Akatsuki has to decide what to do with it. To find the exact fanfiction you're looking for, you could try searching with specific keywords related to the Akatsuki members involved, or any other details you might remember about the story.
In Naruto fanfiction, characters like Jiraiya could also be a 'baby daddy'. He was known for his womanizing ways in the series, so it's not hard to fathom a situation where he has a child. Then there's Itachi. Although his life was full of tragedy and secrecy, a fanfiction could explore a scenario where he has a child before his untimely death. And Kiba could be a character as well. His close bond with his dog Akamaru and his brash personality could lead to a situation where he becomes a 'baby daddy' in a creative fanfiction.
Obviously, Danny Phantom himself could be the 'baby daddy'. His dual nature as a human and a ghost could bring a lot of interesting twists to the story of having a baby. For instance, the baby might inherit some of his ghost powers, which would create all kinds of challenges for raising the child.
Iruka sensei is another possibility. He is kind and nurturing, having already shown his care for Naruto when he was a student. As a baby daddy, he would be patient and dedicated to raising his child with good values and a love for learning.
One possible place to find such a fanfiction is Archive of Our Own. They have a large collection of Naruto - related fanfictions, and this specific plot might be there. Just use the search bar and type in 'akatsuki find a baby with special powers' and see what comes up.
There were a few novels similar to Daddy's Baby that he could recommend. Among them were " Arrogant Baby Is Not to Be Trifled With "," Cute Baby Returns: My Daddy Is a Big Boss "," Black-bellied Baby Drug God Mother's Tyrannical Father "," Prince Daddy Kiss Me "," Billion Tsundere Baby: Daddy, Come Solo "," Billion Baby: Pick Up a CEO Daddy "," Domineering Baby: CEO Daddy Admit It ", and " Baby United Cute: CEO Daddy's Substitute Mommy ". These novels covered different plots and topics, and were suitable for readers who liked these kinds of topics.
One key element is the contrast between Sakura's innocence as a baby or young character and the often dark and mysterious nature of the Akatsuki. It creates an interesting dynamic.
In this fanfiction, the Akatsuki might first be really confused about finding a baby. Some members could be immediately protective, like Itachi. He might see the baby as an innocent life to safeguard. Others, like Hidan, might be annoyed at first but gradually grow fond. They could end up raising the baby within their hideout, teaching it their unique skills in a strange way, like how to move stealthily.