One idea could be a story where Supercorp (Supergirl and Lena Luthor) end up in an alternate universe together. They have to figure out how to get back while also dealing with the differences in that universe. For example, in this alternate world, Lena might be a superhero herself, and Supergirl has lost her powers. It would be a great opportunity to explore their relationship in a new context.
First, you should have a clear idea of the basic plot. Decide if it's going to be a short, sweet story or a long, complex epic. Then, think about the characters. Know their personalities, strengths, and weaknesses. For Supercorp, understand Supergirl's heroic nature and Lena's intelligence and her sometimes - conflicted loyalties.
Some fanfics focus on the 'what if' scenarios. What if Lena Luthor discovered Supergirl's identity earlier? This could lead to a completely different dynamic in their relationship. It might involve them working together more closely, perhaps even Lena becoming Supergirl's confidant and strategist right from the start. Also, a theme could be a crossover with other superhero universes. For instance, bringing in elements from the Arrowverse or even the DC Extended Universe, like having Supercorp interact with characters like Batman or Wonder Woman in some way.
AO3 is by far the most popular and comprehensive source for Supercorp crossover fanfic. It allows writers to post their works with detailed tags and descriptions, which helps you find exactly what you're looking for. Additionally, some Discord servers are dedicated to Supercorp fandom. These servers often have channels where members share and discuss their favorite fanfics. Another option is to check out Wattpad, though it has a wider range of content and you may need to do more sifting through non - relevant stories to find the good Supercorp crossovers.
One common theme is family. It often focuses on how Supercorp (Supergirl and Lena Luthor) build a family around their baby. Another theme is the challenges they face in raising the baby while dealing with their superhero/villain identities.
There's 'Unlikely Allies'. In this fanfiction, Supercorp's dynamic is shown in a unique way as they are forced to work together against a common enemy that threatens both their worlds. It has a great plot that keeps you on the edge of your seat. Also, 'The Promise' is quite popular. It delves deep into their feelings, especially Lena's struggle with her own identity while being in love with Supergirl.
Love and support are very common themes. The stories often show how the two characters in supercorp support each other through the pregnancy, which is really heart - warming.
One popular Supercorp fanfiction is 'The Future We Deserve'. It beautifully weaves a story where Lena and Kara's relationship develops in a post - apocalyptic world. Another great one is 'Hearts Aligned' which focuses on their emotional journey as they face challenges together within the Supercorp universe. And 'Soulmates in the Shadows' is also well - liked as it delves deep into the unspoken connection between the two characters.
One great Supercorp Lena pregnant fanfiction is 'Lena's New Chapter'. It beautifully portrays Lena's journey through pregnancy while dealing with the challenges in her relationship with Supergirl. The story focuses on the emotional growth of the characters.