This fandom commonly refers to the characters James Potter, Sirius Black, Remus Lupin, and Peter Pettigrew as 'The Marauders.'
Currently, many of the stories regarding these four characters can be found on sites such as Archive of Our Own (AO3).
While
the four characters mentioned tend lay at the center of this fandom, they are not the only ones to be featured in the stories
and artworks made by fans; the 'Gryffindor Girls' and 'Slytherin Skittles' tend to be just as popular, if not more, than the Marauders.