Fanfiction.net is also a good place to look. There are many Undertale fanfics there, and by using the right tags and filters, you might be able to find some really cute ones about Papyrus.
You can try websites like Archive of Our Own (AO3). It has a large collection of fanfics, and you can search specifically for 'cute papyrus fanfic' using the search bar.
A really cute papyrus fanfic is the one where Papyrus finds a lost baby monster. He takes it upon himself to care for the little one, making a makeshift crib out of bones and telling it bedtime stories in his unique, energetic way.
One characteristic is the strong focus on their brotherly relationship. Fanfics often show how Sans and Papyrus rely on each other, like in how Sans might be the more laid - back one while Papyrus is full of energy and enthusiasm, and they balance each other out. Another is the use of the unique Underground setting. It provides a backdrop for their adventures and interactions. For example, they might be dealing with other monsters while also strengthening their own bond.
A 'baby papyrus fanfic' could be a fan - made fictional story centered around the character Papyrus in a baby - like form. It might involve cute and innocent scenarios, perhaps his interactions with other characters in this unique state.
A popular sans x papyrus fanfic is 'Shared Skies'. It has a really interesting plot where they face a new threat together in the Underground and their bond grows stronger as a result. 'Soulful Bonds' is also a good read. It dives deep into their emotional connection and how their personalities complement each other. 'Brotherly Love' is a simple yet effective fanfic that just showcases the pure love and care they have for one another.
Well, 'The Red and the Blue' is a great one too. It delves deep into their backstories and how those past experiences shape their relationship. The story shows how Undyne's boldness and Papyrus' kindness complement each other. It's a bit more of a slow - burn story, but it's really well - written and engaging.
There's also 'Swap Brothers' Bond'. This fanfic delves deep into the brotherly bond between Sans and Papyrus in the Underswap setting. It shows their daily adventures and how they support each other. The author does a great job of capturing the essence of their swapped selves, and it's full of humorous and touching scenes.
I really liked 'The Unlikely Bond'. In this fanfic, Papyrus and Chara start off as enemies but gradually come to understand each other. The story has a lot of emotional depth, with Papyrus trying to see the good in Chara and Chara learning to open up. It's full of heartwarming moments and some really cool plot twists that keep you hooked.
The contrast between their personalities. Undyne is strong and fierce, while Papyrus is kind - hearted and a bit naive. When these two are paired in a fanfic, it creates a lot of interesting dynamics. For example, Undyne might protect Papyrus in a fight, and Papyrus would be there to comfort her with his gentle nature.
One main theme is identity. Since it's an underswap, their identities are different from the original, and exploring how they adapt to these new roles is a big part. For example, if Papyrus is more like the original Sans in some aspects, how does he deal with that change.
Well, start with popular fan - fic platforms. Archive of Our Own is a great place. It has a wide range of fan - fictions sorted by different tags. Just search for 'baby papyrus' and you might find some interesting ones. Another option is to check out some Undertale - focused fan communities on social media platforms like Reddit. Sometimes users share their own 'baby papyrus fanfic' or recommend good ones they've read.