To make it a good 'baby ed and al fanfic', include some elements of alchemy in a way that is accessible for their young age. Maybe they discover a simple transmutation circle and try to figure out what it does. Also, don't forget to add some emotional depth, like their bond as brothers and how they support each other even as little kids.
One popular 'baby ed and al fanfic' might be those that explore their early days of alchemy training. For example, a story could focus on how they first discovered their interest in alchemy and the small experiments they did as children.
First, really understand the RWBY characters. Know their personalities, strengths, and weaknesses in the original series. Then, think about how those traits would manifest in a younger version. For example, Weiss might still be a bit headstrong as a baby, but in a more innocent, child - like way. Also, create engaging storylines that are appropriate for a younger version of the RWBY world, like adventures in their hometowns.
First, understand the characters. Know the personalities of the Winx girls. For baby versions, think about how their core traits would be in a more innocent and developing state. For example, Bloom's determination would be more like a cute stubbornness as a baby.
First, know the Cuphead universe well. Understand the characters, the setting, and the rules of the Inkwell Isles. For a 'Cuphead baby fanfic', you need to think about how a baby version of Cuphead would behave. He would be more innocent, curious, and perhaps a bit clumsy. Then, come up with an interesting plot. It could be a simple adventure or a story about him learning something new.
Another way is to follow fanfic authors who are known for writing 'ed x al' stories. They often link to other great works in the same genre or by their friends. Also, check out fanfic review blogs. They sometimes feature 'ed x al fanfic' and can give you an idea of which ones are worth reading.
One popular 'ed x al fanfic' might be 'The Brothers' Bond'. It focuses on the deep emotional connection between Ed and Al. Another could be 'Adventures Beyond the Gate' which takes their story in a new and exciting direction.
Create an engaging plot. Maybe set it in the Titans' tower. The other Titans find baby Beast Boy and they have to figure out how to turn him back. Along the way, you can add some cute moments like Beast Boy chasing his own tail in his baby animal form. Also, use vivid descriptions to bring the story to life. Describe how his green skin looks when he's a baby, or how his eyes sparkle when he's excited in his animal form.
First, know the Hunger Games universe well. Understand the rules, the districts, the Capitol's control, and the characters' personalities. For a baby fanfic, think about how the new generation fits into this world. Second, create an interesting plot. It could be about the baby's special abilities or how they are different from others. Third, develop the characters well. Even if it's a baby, give them distinct traits.
You can try fanfiction.net. It has a large collection of Fma (Fullmetal Alchemist) fanfics involving Ed and Al. There are often filters you can use to narrow down your search to just the stories that interest you most.
There are also fanfics that explore alternate universes. In these, the relationship between Ed and Al could be different from the canon. Maybe they are in a world where alchemy works differently, or they have different personalities. This allows for a lot of creativity in exploring their relationship in new settings and scenarios. It can also lead to different interpretations of their bond, whether it becomes more strained or even closer in these alternate worlds.