Well, perhaps a plot point could be the reactions of the Kwamis. When Adrien and Gabriel swap, the Kwamis that are used to one person's personality and way of doing things would have to adjust. For example, Plagg might be really confused with Gabriel in Adrien's body. Also, the way they use the Miraculous powers could change. Adrien might use the powers in a more positive and heroic way compared to Gabriel's more self - centered motives in the original role.
The father - son relationship would be completely turned on its head. Instead of Gabriel being the strict and often distant father, Adrien would be in that role. He might be more understanding and lenient towards himself (in Gabriel's body). And Gabriel, as Adrien, would have to deal with a father - like figure in Adrien's real father. This would create a very strange and new dynamic between them.
You can try looking on popular fanfic websites such as Archive of Our Own (AO3). It has a large collection of fanfictions, and there's a good chance you'll find a Gabriel x Vinette fanfic there. Just use the search bar and type in the relevant tags like 'Gabriel Dropout', 'Gabriel x Vinette' and see what pops up.
He might be an old friend of Harry's parents who was thought to be dead. But he resurfaces and has a lot of knowledge about James and Lily Potter that he shares with Harry. This knowledge could help Harry in his fight against the remaining dark forces in the wizarding world.
A good fanfic in this pairing often has well - developed characterizations. It should capture the essence of Gabriel and Vinette's personalities as seen in the original series. For instance, Gabriel's lazy - yet - secretly - caring nature and Vinette's sweet and somewhat naive personality.
To develop Naruto's character in this fanfiction, he could face challenges that require him to use his wits more than his physical strength, which he learns from Gabriel. Gabriel's character could develop by learning about Naruto's past, his struggles, and his dreams. This could make Gabriel more involved in the mortal world and its affairs. He might even start to question some of the angelic rules and traditions he has always followed.
One great fanfiction is 'The Unspoken Love'. It beautifully captures the shy moments between Adrien and Marinette. It delves deep into their unexpressed feelings and how they navigate their superhero and normal lives while being in love. The author does an amazing job of creating tension and sweet moments that keep you hooked from start to finish.
One great 'Marinette x Adrien Reveal Fanfic' is 'The Unveiling of Hearts'. It beautifully captures the moment when they finally reveal their identities to each other. The emotions are raw and the way their relationship progresses after the reveal is very heartwarming.
Well, it depends on your taste. Some might be found in dedicated Teen Wolf (since Stiles is from that) and Supernatural (if Gabriel is from there) fanfiction communities. Check out forums related to these shows as well, where fans might share their favorite Gabriel x Stiles yaoi fanfictions. They could range from angsty love stories to more light - hearted and comical ones.
Love and friendship are often explored as well. It could start as a friendship that gradually develops into something more. Or perhaps they are forced to work together due to some external threat and in the process, they develop deep feelings for each other. The stories might also touch on themes of loyalty and sacrifice as their relationship progresses.