Another possibility could be Daario Naharis. He had a romantic relationship with Daenerys in the series, so it's not far - fetched to imagine him as the father in fanfiction. His charm and skills as a warrior could play an interesting role in a story where he is the father of her child.
Some fanfictions might even have a completely new character as the father. This new character could be from a different land or have some special powers or abilities. This allows for more creative freedom in the story, as the writer can develop this new character's backstory and relationship with Daenerys in any way they like.
One potential father could be Jon Snow. Given their complex relationship in the original series, it's a popular choice among fanfiction writers. Their union could bring about a new era of power and unity in the fictional world.
One potential father could be Asriel. Given their history and connection in the Undertale lore, it's a possibility that some fanfictions might explore this relationship leading to Chara's pregnancy. Another could be a human character that somehow ended up in the Underground and formed a relationship with Chara.
Allies could include the remaining Stark family members. They would surely support the baby as it is part Stark through Jon. The Unsullied might also be allies as they were loyal to Daenerys. As for enemies, Cersei's remaining supporters could be a threat, seeing the baby as a rival to any power they might still hold. Also, the Night King's followers (if any still exist) could see the baby as a new target, a symbol of the new life they oppose.
One possible plotline could be Daenerys facing the challenges of ruling while pregnant. She has to deal with political intrigue and threats to her throne, all while protecting her unborn child. Another could be her journey to find a safe place for her child to be born, perhaps encountering new allies and enemies along the way.
One possibility could be Jon Snow. Given their complex relationship in the original story, it would make for an interesting dynamic. Their union could have led to her pregnancy, and the fact that they are related in some way could add a layer of conflict and drama.
A common storyline in male Daenerys Targaryen fanfiction is his journey to claim the Iron Throne. However, it can be different from the original. He might form unexpected alliances. For instance, instead of allying with the Dothraki as the female Daenerys did, he could choose to befriend the Wildlings. This would completely change the political landscape of Westeros in the fanfiction.
The fanfiction could also show how Naruto and Daenerys' different forms of power are both feared and respected. Naruto's power comes from within, his chakra, while Daenerys' power is more external, with her dragons and army. Their alliance would make others think twice about challenging them. And as they get to know each other better, they could find that they have more in common than they first thought, like their desire to protect those they care about and make the world a better place.
In addition to Jon and Daenerys, other characters might also play important roles in some fanfictions. For instance, Tyrion Lannister could be there as an advisor to Daenerys. His wit and political acumen might help in the interactions between Jon and Daenerys. Or Arya Stark could be involved in some way, perhaps as a spy or a messenger between the North and Daenerys' camp. These additional characters can add more depth and complexity to the story of Jon and Daenerys' meeting.
Draco Malfoy could also be a potential father in some 'Hermione Secret Child Fanfiction'. Their relationship in the original series was one of rivalry, but fanfiction often takes unexpected turns. The idea of a relationship between them, perhaps in a post - war world where they put aside their differences, could lead to the birth of a secret child, which would add a whole new layer of drama and intrigue to the story.
Love and loyalty are also frequently seen. The OC might develop a deep loyalty to Daenerys or a romantic relationship with her. For example, in some fanfictions, the OC stands by Daenerys through all her trials, showing unwavering loyalty. Another aspect could be the theme of identity. The OC may have a unique identity that either complements or clashes with Daenerys' identity as a Targaryen. They might have to figure out how to coexist or come to terms with their differences.
One great 'daenerys targaryen oc fanfiction' is 'A Dragon's Heart'. It really delves into the character of Daenerys and the original characters created for the story in an interesting way.