There are many way for people to express them sleeves rathe it be drawing sport or other hobbies . but one way i foud has worked for many people at my school , is anime . for example people "ship" todorki with deku . From my hero academia . Guy an daiske for revisions . and ,any more . ANd other people will try other character or would maybe create fan fiction like meeting character form theses animes ,or in a relation ship with theses character rather a friendship or aromatic one . Some say thus is mentally ill or others say theses peole who do this are crazy . but none of that is true its what they wish could or would happen . like fantasy and reality . And as long as you know the difference between the two its perfect ally fine to jut make up stories that make other people smile or put them selves in stories