Sure. A lot of fanfic writers choose to explore their emotional bond, like how they support each other in the face of danger in the Shadowhunter world. Look for stories with tags like 'Friendship' or 'Adventure' which are less likely to have inappropriate content.
Yes, there are many. You can search on fanfiction platforms using filters like 'General Audience' or 'T - Teen' to find stories that focus on their relationship, adventures, and character development without sexual content.
There are. Some fanfictions might center around their training together as Shadowhunters. They could be learning new skills, strategizing against enemies, and these kinds of stories usually don't involve kinky sex content. You can start your search by looking for fanfics with action - oriented tags.