One example could be a story where Naruto is in a dangerous mission and Gaara shows up unexpectedly to protect him. Gaara uses his sand powers to shield Naruto from enemy attacks, showing his loyalty and protectiveness.
There could be a fanfiction where Naruto gets injured during a training session that goes wrong. Gaara, who has been keeping an eye on Naruto's progress (maybe because he admires Naruto's determination), immediately rushes to his side. He takes Naruto to the best medical ninja in the Sand Village and stays by his side until he recovers, showing his concern and protectiveness.
Perhaps there's a plot where Naruto is framed for a crime that could lead to his expulsion from the ninja world. Gaara, believing in Naruto's innocence, launches an investigation on his own. He uncovers the real culprits and presents the evidence to the ninja council, all while protecting Naruto from any harm that might come his way during the process. Gaara's protective nature also extends to Naruto's emotional well - being. When Naruto is feeling down about not being able to achieve a certain goal, Gaara is there to offer words of encouragement and support.
One example could be a fanfic where during a battle in the Hidden Leaf Village, Naruto immediately stands in front of Hinata when an enemy attacks. He uses his shadow clone jutsu to surround her and keep her safe. His focus is solely on her protection, not even thinking about the battle strategy until he's sure she's out of harm's way.
In some fanfictions, Gaara might protect Naruto from the villagers' wrath. Naruto often faces discrimination in the village, and Gaara, who has his own experiences of being an outcast, could step in. He might use his influence as the Kazekage to make the villagers see Naruto in a different light, thus protecting him not just physically but also socially.
A possible fanfiction could have Sakura and Gaara in a situation where they are part of a joint mission with other ninjas. There's a new male ninja on the team who is overly friendly with Sakura. Gaara notices Sakura blushing at the new guy's compliments. Gaara becomes jealous and starts to act more distant towards Sakura. Sakura, not understanding why, gets jealous herself when she sees Gaara spending time with another female ninja from the village who seems to be very interested in him. This creates a cycle of jealousy and misunderstandings between them.
One plot idea could be that Gaara, as Naruto's protective brother, uses his sand powers to shield Naruto from various attacks during a major battle against a new and powerful enemy. For example, when the enemy launches a surprise attack on Naruto, Gaara quickly forms a sand barrier around him, saving his life. Another idea is that Gaara helps Naruto train in secret to master a new technique. He shares his own experiences with controlling power, which Naruto can relate to with his Nine - Tails chakra.
In some fanfiction, there could be a situation where a new organization wants to use the Nine - Tails for their evil experiments. Naruto, being aware of this, would go on a solo mission to stop them. He would put himself in danger to ensure the Nine - Tails' safety. Also, if there were rumors or threats of someone trying to steal the Nine - Tails' power, Naruto would increase his guard and be extra vigilant, ready to defend at any moment.
One good example could be a story where Fem Naruto and Gaara meet during a mission. They start off as strangers but gradually realize they have a deep connection. Their love might develop as they face common enemies together and discover they both have a desire for peace in their villages.
In some fanfictions, during a dangerous adventure outside of Hogwarts, Fred and George are constantly by Hermione's side. For instance, if they are exploring an old wizarding ruin and there are traps and dark creatures. They would use their combined knowledge of magic and their quick thinking skills to keep Hermione safe. They might even sacrifice their own safety to ensure she gets out unharmed. This shows their protective nature towards her.
One great example could be a fanfiction where Naruto has to battle a powerful new enemy who has kidnapped Gaara. Naruto uses his new jutsu and his unwavering friendship to break through the enemy's defenses and save Gaara. Another might be a story set in an alternate universe where the circumstances of Gaara's capture are different, but Naruto still goes to great lengths, even sacrificing his own safety, to rescue Gaara.
One example could be in a fanfiction where there is a new dark wizard threat at Hogwarts. Harry always makes sure Hermione is with him or in a safe place when they suspect danger. He might stand in front of her when the dark wizard's minions approach. Another example is when Hermione is researching a dangerous spell. Harry tries to limit her exposure to it, worried that it could backfire on her.