A new character could be introduced. A half - blood witch who works in St. Mungo's. Draco meets her when he goes there for some reason, and he's drawn to her kindness and nurturing nature, thinking she would be perfect to have a baby with.
Another option could be an original character created just for the fanfiction. This gives the writer a lot of freedom to create a character with unique traits and a backstory that fits the plot they have in mind for Draco and the baby.
Zero could be a superhero who has saved the world many times but now feels a void in their life and desires a baby to bring a different kind of purpose. For example, if Zero is from a comic book universe, they might have seen their fellow heroes with families and now want that for themselves.
Another god like Hermes could be the father. Hermes is known for his charm and cleverness. He and Artemis could form an unlikely bond over the idea of having a baby. Their different personalities would create a lot of interesting interactions as they navigate the process of having a child together.
It could be Jiraiya. They have a long - standing relationship. Jiraiya has always been around Tsunade, and they have a deep connection. His carefree yet passionate nature might be what Tsunade needs in a partner to start a family with.
It could be Hinata. Since they are in a relationship in the original series, it would be a natural choice. Hinata would be a loving and caring mother, and her gentle nature would be a great influence on the baby.
It could be a new character created specifically for the fanfiction. A powerful witch who crossed paths with Kol and they fell in love. Maybe she has her own secrets and a past that ties into the Mikaelson family's history in some way.
A possible plot is that Draco enters into an arranged marriage for the sake of having a baby. However, he slowly falls in love with his partner during the process of trying to conceive. Maybe they face difficulties like infertility due to a dark magic curse from the past, and they have to go on a quest to find a cure.
Edward, of course, would be one of the main characters. And there could be a female character, like Isabella, who might be Edward's love interest and the potential mother of his baby. Maybe there's also Edward's best friend, Jacob, who gives him advice on this journey of wanting a baby.
It could be an unknown character. Maybe Steve had a one - night stand with someone while on a trip out of town and she left the baby with him without any explanation.
It could be a completely new character. Maybe Naruto met her during his travels, and for some reason, she had to entrust the baby to Naruto. This could be due to her being in danger or having some kind of mission that made it impossible for her to take care of the baby herself.