Can you recommend some good sans x reigen fanfic?

Well, one characteristic is the blend of different universes. Since sans and reigen are from different fictional worlds, fanfics often play with the idea of how these two very different worlds collide. For example, in some, the magic or powers from each world interact in unique ways.

There's also 'The Unspoken Connection' which is really good. It focuses on the unspoken understanding between mob and reigen. The author does a wonderful job of portraying their unique dynamic.

Sure. One popular 'fell sans x swap sans fanfic' is 'The Meeting of Two Sanskies'. It has an interesting plot where they first encounter each other and the way their personalities clash and then gradually find common ground. Another one could be 'Fell and Swap: A Different Bond' which delves deeper into their relationship development.

One popular sans x flowey fanfic is 'The Unlikely Bond'. It explores an interesting relationship between them, with unique character interactions and a plot that keeps you engaged. The story delves into how their personalities clash and eventually find common ground in the strange world they inhabit.

One popular sans x chara fanfic is 'Under the Stars'. It has a really interesting plot where Sans and Chara go on an adventure through different AU (Alternate Universes) in the Undertale world. The character development in it is quite good.

One popular sans x undyne fanfic is 'Soul Bonds'. It delves into a unique AU where their relationship takes on a whole new dimension. The story is filled with interesting character interactions and a plot that keeps you hooked.

There are numerous 'lucy x sans fanfic' out there. 'Lucy's Encounter with Sans' is a fanfic that stands out a bit. It delves into the initial meeting between Lucy and Sans and how their relationship gradually develops. The author does a great job of portraying their emotions and reactions to each other. It's not just about the romantic aspect but also about how they come to understand and rely on each other in their fictional realm.

One popular sans x tori fanfic is 'A Chance Encounter'. It has a really interesting plot where Sans and Toriel meet in an unexpected situation and gradually develop a unique bond. The story is well - written, with vivid descriptions of their interactions.

Well, 'Parallel Universes' is also a great one. In this fanfic, the idea of different universes brings sans and nagito together. It's filled with a lot of exciting plot twists as they navigate through the challenges of co - existing in a world that's not quite what they're used to. The character development is really well - done in this one too.

I'm not really sure about specific 'after sans x reaper sans fanfic' stories as there are so many out there. But you could try looking on fanfiction websites like Archive of Our Own. They usually have a wide variety of fan - made stories, and you can search for this specific pairing to find some good reads.