One common theme is the power dynamic. Hades is often seen as a powerful figure in Greek mythology, and Steve, in this AU, would carry that sense of power. Tony as Persephone might bring in themes of beauty and the idea of being 'claimed' or 'taken' to the underworld, which could translate to some interesting power play in the fanfiction.
Another theme could be the contrast between light and dark. Tony is often associated with bright, flashy technology and Steve with a more stoic, sometimes darker presence. This could play out like the contrast between the upper world (where Persephone is from) and the underworld (Hades' domain). Also, there might be themes of redemption or change. Steve as Hades might be seen as a character who needs to soften or change because of Tony as Persephone, and vice versa.
One popular place to find such fanfiction is Archive of Our Own (AO3). Just go to the site and use the search bar with the relevant tags 'Tony is Persephone' and 'Steve is Hades' to discover various stories.
In hades kidnaps persephone fanfiction, a frequently seen theme is redemption. Hades might be seen as a character in need of redemption for his actions. Another is the discovery of self. Persephone discovers new aspects of herself while in the underworld. And the theme of forbidden love is quite common too. Their relationship is often seen as something that goes against the norms of the gods, yet they are drawn to each other.
Well, a frequent theme is forbidden love. In Greek mythology, their relationship was not a typical one. Fanfictions often play on this aspect, showing the challenges they face due to the disapproval of other gods or goddesses. Love across different realms is also common. Hades rules the Underworld, and Persephone has her connections to the upper world. Their love story bridges these two very different worlds. Additionally, the theme of transformation is present. Persephone often transforms from an innocent maiden to a more powerful goddess through her relationship with Hades.
Another theme is the duality of the underworld and the overworld. Fanfics often play with the idea of Persephone being a bridge between these two realms, and how her relationship with Hades affects both the light and dark aspects of the world.
Love is a very common theme. Their relationship, which is a complex mix of passion and power, is often explored in depth.
One common theme is the power dynamics between Hades and Persephone. Since Hades is a powerful god and Persephone is often seen as more innocent and new to the world of the gods, their relationship is full of negotiations of power.
One common theme is the anticipation and excitement of new life in the Underworld. It often explores how Hades and Persephone prepare for the arrival of their child in such a unique and somewhat dark realm. Another theme could be the reactions of the other gods and goddesses. Some stories might show Zeus's reaction, for example, as he is often a powerful figure in Greek mythology.
Another theme is the concept of balance. Their relationship represents a balance between life and death. Hades rules the underworld, which is associated with death, while Persephone has a connection to life as she spends part of the year on earth. Fanfictions often explore how their relationship helps maintain this delicate balance in the mythological world.
One common theme is the power of love. Their relationship, whether it's budding or fully developed, often shows that love can bridge different worlds, like the Underworld and the world above. For example, in many fanfictions, their love is what helps to bring some sort of balance between the two realms.
A common theme is friendship. Despite their differences, they always come back to being friends. For example, in many stories, they start off arguing but end up supporting each other.