Kakashi could use his Sharingan to analyze Obito's moves and find a weakness in his defenses. Since he has the Sharingan, he might be able to predict Obito's attacks and counter them effectively, eventually finding an opportunity to break free.
Naruto would probably be one of the first to try and rescue Kakashi. He has a strong bond with Kakashi and would not stand by while his teacher is in danger.
If Orochimaru kidnaps baby Naruto in fanfiction, it would likely start a race against time for the Hidden Leaf Village to get him back. The village elders and the Third Hokage in particular would be desperate to rescue Naruto. They might send out their best ninjas, including Kakashi, to track Orochimaru down. Orochimaru, on the other hand, could be planning to raise Naruto as his own weapon, brainwashing him from a young age to be loyal only to him.
Well, Naruto might use his Nine - Tails chakra to break free. He's a tough one. He could also try to outwit Orochimaru with his ninja skills. Maybe he'd pretend to be unconscious and then surprise Orochimaru when he least expects it.
In a scenario where Orochimaru kidnaps Hinata, the Hyuga clan would surely get involved. They'd be outraged and use all their resources to find her. Orochimaru might be interested in Hinata's Byakugan for his experiments. He could try to extract its power or study it. But Hinata has been trained in the Gentle Fist style, so she might be able to hold her own against Orochimaru's minions for a while. And who knows, Sasuke might also get involved. He has his own history with Orochimaru and might see this as a chance to confront him again, especially if he realizes that an innocent like Hinata is in danger.
Well, one possibility could be that Itachi has some hidden motive related to the Uchiha clan's secrets. He might think Kakashi knows something crucial. So, he kidnaps him to interrogate him in a secret location.
One possible plot could be that Tobi kidnaps Kakashi to gain some valuable information. Maybe he wants to know about the Sharingan secrets Kakashi has. Tobi could hold Kakashi in a secret lair and try to interrogate him.
First, Orochimaru would probably use some sneaky tactics to capture Naruto. Once he has Naruto, he might take him to a secret lair. Naruto would be thinking of ways to escape right away.
In a fanfiction where Orochimaru kidnaps baby Naruto, the development could be very complex. Orochimaru could initially plan to use Naruto's Uzumaki bloodline for some powerful jutsu creation. But as Naruto grows, he might show kindness towards Orochimaru's minions, which could start to change the dynamic in Orochimaru's hideout. Back in the village, the absence of Naruto could lead to a shift in power. Some might try to take advantage of the situation while others would be focused on getting Naruto back. Naruto himself could end up becoming a sort of bridge between Orochimaru's world and the Hidden Leaf Village if he manages to escape or change Orochimaru's ways.
In this fanfiction, once Orochimaru kidnaps Hinata, the story might start with Hinata waking up in a strange, dark place. She'd be scared but also resolute. As she tries to assess her situation, Orochimaru would likely make an appearance and start taunting her. Meanwhile, outside, Naruto and his friends would be following any leads they can find. They might run into some of Orochimaru's old allies or enemies who could either help or hinder their search. The story could also focus on Hinata's internal struggle as she battles her fears and tries to find the strength within herself to survive and escape. And when the rescue party finally arrives, there could be an epic battle between Orochimaru and the Leaf Village ninjas with Hinata's fate hanging in the balance.