One common theme is the exploration of an unlikely relationship. Since Papyrus is a very positive and friendly character and Chara has a more complex and somewhat controversial backstory in the Undertale universe, seeing how they interact and form a relationship is often explored. For example, some fanfictions might focus on Papyrus helping Chara to overcome their past traumas.
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.
Redemption is another theme. Chara is often seen as a more morally ambiguous character, and fanfictions might explore how Papyrus could influence Chara towards redemption. Papyrus's strong sense of right and wrong could play a big role in this kind of story.
The appeal of 'Undertale Papyrus x Chara Fanfic' lies in the contrast between the two characters. Papyrus is this big, goofy, but ultimately good - hearted skeleton, while Chara has a much darker and more complex backstory. When they are paired in fanfics, it creates a dynamic where there's a lot of room for character growth and exploration. For example, Papyrus can bring out the good in Chara, or Chara can challenge Papyrus's naivete in an interesting way.
You can try looking on fanfiction.net. It has a vast collection of fanfictions, and you're likely to find some for Chara x Papyrus there. Just use the search function and type in the relevant tags.
You might also check out Tumblr. There are a lot of Undertale fans on Tumblr who might share or write Papyrus x Chara fanfiction. You can search relevant tags such as #PapyrusxChara or #PapyrusCharaFanfiction. Just be aware that Tumblr's search isn't always as accurate as the dedicated fanfiction sites, but it can be a good source for finding unique and creative works.
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.
Underswap Papyrus is an interesting character. In fanfiction with a reader, it often explores a unique relationship. The fanfictions might show his charming, kind and sometimes goofy side. It could be about an adventure where he and the reader go through challenges together, or just a slice - of - life story where they get to know each other better.
One possible aspect of 'flowey x chara fanfiction' could be the exploration of their complex relationship. Flowey, with his somewhat twisted nature, and Chara, who has their own deep backstory, can create a really interesting dynamic in fanfiction. Writers might delve into how they interact, whether it's a love - hate relationship or something more nuanced. It could also involve exploring the different AU (alternate universe) scenarios where their relationship could take on different forms.
Well, the relationship could start with Papyrus's passion for spaghetti. He could talk to the spaghetti as if it were a friend, sharing his day and dreams. Maybe he gives the spaghetti names based on how it looks, like 'Curly' or 'Longy'.