Well, in the fanfiction 'Snape's Lifesaving Love for Lily', it focuses on the deep emotional connection Snape has with Lily. This connection is what spurs him to save her time and time again. For example, when Lily is targeted by a powerful dark wizard, Snape uses his knowledge of dark magic to counter the attacks. Also, 'A Different Ending: Snape Saves Lily' rewrites the events in a way that Snape's actions have a more direct and positive impact on Lily's survival, showing a different side of their relationship.
There's a fanfic called 'Snape's Hidden Heroism for Lily'. In this story, Snape discovers a plot against Lily early on and starts devising ways to keep her out of harm's way. He sacrifices his position among the Death Eaters and risks his own life in the process. Another interesting one is 'When Snape Saved Lily'. It details a scenario where Snape has to fight his former friends to rescue Lily from a deadly trap.
A great fanfiction is 'Forgive and Remember'. It starts with Snape's memories being revealed to Lily in a Pensieve - like scenario. As she sees his true feelings, his love for her, and his internal struggles, she begins to soften towards him. 'Lily's Path to Forgiveness' is also interesting. It focuses on Lily's journey after her death. She watches Snape from the afterlife and realizes how much he has suffered because of his love for her, which makes her forgive him. Also, 'Snape's Redemption and Lily's Forgiveness' shows how Snape's actions in protecting Harry are slowly revealed to Lily, and she finally forgives him for all the past wrongs.
One good example could be a fanfiction where Snape saves Harry from a dark wizard's attack during the Triwizard Tournament. In this fic, Snape might have been secretly following Harry out of his sense of duty to protect him. Another could be a story where Snape saves Harry from a dangerous potion experiment gone wrong in the Potions classroom. He uses his extensive knowledge of potions to counteract the harmful effects.
One great example could be a fanfiction where Snape overcomes his long - held grudges against Sirius in a life - or - death situation. Maybe Sirius is framed again, and Snape, having discovered the truth through his own investigations, steps in to save him. This could involve a complex plot where Snape has to fight against his own pride and the expectations of others in the wizarding world.
One great example could be a story where James discovers a plot against Snape that no one else is aware of. He then uses his skills and Gryffindor courage to protect Snape from the impending danger. This could involve him facing off against some dark wizards who have a vendetta against Snape.
In some versions, James might use his Quidditch skills to create a distraction while rescuing Lily from a dangerous situation Snape unknowingly led her into. For example, he could fly in on his broomstick and snatch her away just as a spell was about to hit her.
In this type of fanfiction, a plot twist could be that Snape saves them, but they end up having to go into hiding in a completely unexpected place. Maybe they have to live among muggles in a way they never thought possible. Another plot twist could be that Snape saves them, but then realizes that he has put himself in a very dangerous position with Voldemort's followers. So he has to find a way to protect himself while also protecting Lily and James. And there could also be a plot twist where Snape saves them, but they don't believe his motives are pure and they try to escape from him, leading to a whole new set of adventures and challenges.
There's also 'Lily's Perspective' which gives an interesting take on how Lily might have felt about Snape. It's really good at exploring her emotions and her friendship with Snape that had so many layers.
Snape in 'Snape Saves Lily' fanfictions is typically depicted as a hero in a sense. Despite his past associations with the dark side, his love for Lily makes him turn against his former allies. He is shown to be intelligent and resourceful, using his skills in magic, especially his knowledge of potions and dark arts (but using it for good in this case), to save Lily from various threats. He is also portrayed as a very emotional character, his love for Lily being the one pure thing in his otherwise troubled life.
There's 'Lily's Mistake'. This fanfiction focuses on Lily's realization of her wrongdoings towards Snape. It shows her journey of self - discovery and attempts to make amends. The story is quite emotional as it also portrays Snape's inner turmoil due to the bullying he endured from Lily.
A really interesting one is 'Snape and Lily: Alternate Paths'. It takes a different approach by imagining various alternate timelines for their relationship. In some, they end up together, while in others, their relationship is even more tragic. It's a fascinating exploration of their characters and how their relationship could have developed differently.