Kushina might have had a pre - arranged plan with some allies. These allies could have created diversions while she grabbed Naruto and made their escape through a hidden passageway. She could also use her knowledge of the village's layout to avoid detection and flee.
She could use her Uzumaki chakra chains to break through any barriers or enemies in their way. Maybe she also has some secret teleportation jutsu that she uses to quickly get away with Naruto.
In certain fanfic concepts, Naruto could have found a special relic or artifact. This relic might have the power to reverse death. Since Naruto is always on adventures and exploring different places, he might stumble upon such an item and use it to revive Kushina. It could also be related to the Uzumaki clan's secrets that he uncovers which enables him to bring his mother back.
Well, in some versions, Naruto might use his powerful jutsu. Maybe he uses his Rasengan to fight off the Kumo ninjas who are after Kushina. He could also use his speed and agility to outmaneuver them and get Kushina to safety.
Naruto could use his shadow clones to create a diversion. He might make a bunch of clones and have them attack the Akatsuki members in different directions while he tries to find a way out. For example, he could use the chaos to search for a hidden passage or a weak spot in their hideout.
In some fanfictions, Naruto might use his unique jutsu like the Rasengan. He could use it to break through barriers or fight off Uchiha attackers, creating an opening for his escape.
In certain fanfic ideas, Naruto could have made a deal with some sort of otherworldly being. He might have sacrificed something of great value, like a part of his own chakra or a future ability, in exchange for Kushina's life. Another possibility is that he finds a way to reverse the very nature of death by using some unique properties of the tailed beasts' chakra that he has access to.
In certain fanfiction concepts, Naruto might make a deal with some sort of spiritual entity. He sacrifices something of his own, like a part of his power or his future, in order to bring Kushina and Minato back. Or he could have harnessed the power of the tailed beasts in a new and unique way. The tailed beasts are extremely powerful, and if he could combine their power with his own in a specific way, it might be enough to revive his parents.
In some fanfictions, Naruto might use some super powerful jutsu he created or mastered. Maybe it's a new form of Sage Mode that can reverse time on a small scale. Another possibility is that he found some ancient forbidden technique hidden in the Uzumaki clan's secrets.
In some fanfictions, Naruto is always calm because he has mastered his inner chakra better. His training with Jiraiya made him more in control of his emotions. So when facing challenges, he can draw on that inner peace and not be easily rattled.
She might use her intelligence and magic skills. For example, she could create a distraction using a spell like 'Confundo' on her captors and then make a run for it. Hermione is known for her quick thinking, so she could also find a loophole in the security measures set by the Order.
Kushina's training in the fanfiction might also impact Naruto's mental state. Knowing that his mother is there to train him gives him more confidence. He feels more connected to his family and his Uzumaki heritage. This new - found confidence reflects in his battles, where he is more fearless and decisive.