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.
Well, they could decide to find out where the baby came from. Maybe the baby has some special power that attracted the Akatsuki's attention. For example, if the baby can control a certain element without being taught. Kisame might be the one to carry the baby around as he is big and strong. And Pain could see the baby as a new opportunity, either to use it for their goals or to change the Akatsuki's ways because of this innocent life.
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.
They might be really amused. Some of the fanfiction could be so out - of - the - box that it would make them laugh. For example, if there was a fanfiction about them all becoming bakers instead of ninjas, it would be a hilarious concept for them.
One possible scenario is that Sakura could bring her medical skills to the Akatsuki. She might be able to heal some of the members who are constantly in battle and injured. This could change the group's dynamic as they would no longer have to worry as much about their wounds. Also, her combat skills could be enhanced by learning from the Akatsuki's unique fighting styles.
Well, in such a fanfiction, Sakura might be used as a bargaining chip. The Akatsuki could try to exchange her for something valuable, like secret jutsu. Or they might want to extract information from her about Konoha's defenses.
In the 'Akatsuki babysits Naruto' fanfiction, Pain might see Naruto as a potential tool or threat. He could try to indoctrinate Naruto into the Akatsuki's way of thinking. Meanwhile, Konan might be the more motherly figure, making sure Naruto is fed and clothed properly. Deidara might also be there, constantly arguing with Naruto about what is 'art' and getting into comical debates.
Well, if Naruto joined Akatsuki, he would likely face a huge internal struggle. He has always been against the Akatsuki's actions in the original series. His values of friendship and protecting the village would be put to the test. He might try to change the Akatsuki from within, using his talk - no - jutsu to convince some members to abandon their more evil plans. But he would also be in a difficult position as the Akatsuki is filled with powerful and dangerous individuals.
Well, Naruto might be interrogated for information about the Hidden Leaf. The Akatsuki are always after secrets, especially about the Jinchuriki. So they could be trying to find out more about the Nine - Tails within Naruto.
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.
If Sakura gets kidnapped by the Akatsuki in fanfiction, Sasuke could also get involved. Since he has his own history with the Akatsuki, he might use his knowledge to track them down. Also, Sakura herself could be trying to find a way to escape from within. She's a strong kunoichi, after all. She might be gathering information about the Akatsuki's plans while being held captive.
Well, in this kind of fanfiction, Minato might be able to use his powerful jutsu to take on the Akatsuki members one by one. He could teach Naruto some secret techniques that he never had the chance to before. And maybe he would reform the Leaf Village's defenses to better protect against future Akatsuki threats.