Maybe Artemis figures out where he is. She has her own set of skills and knowledge that could lead her to the island. Once she arrives, she and Dick work together to get off the island. For example, she could have some knowledge about the tides that helps them build a better raft for their escape.
One possibility is that Dick has to use his survival skills learned as a hero to find food and shelter. He might also encounter some strange creatures on the island that he has to either fight or outwit.
One possible scenario in such a fanfiction could be that Dick Grayson gets sick due to overexertion during a mission. He might be pushing himself too hard to prove his worth to the team. His sickness could then lead to other members of the Young Justice team having to step up and take on more responsibilities, which in turn could develop their characters further. For example, Wally West might have to take over some of Dick's leadership roles and learn to be more patient and strategic in the process.
One possible fanfiction could involve Dick Grayson getting angry when his team in Young Justice makes a decision without consulting him. He might feel that his leadership skills are being undermined and this could lead to a big argument within the team.
One common theme is the development of their relationship. Whether it's a friendship or something more, it often evolves over the course of the story as they face different challenges together in the Young Justice setting.
The plot could be that Dick Grayson gets angry when a new member is brought into the Young Justice team without his approval. He might think that the new member has a hidden agenda. So, he starts to investigate on his own, causing tension within the team as they think he's being paranoid.
One interesting plotline could be them having to deal with a new and powerful villain that specifically targets their relationship. For example, a villain who tries to turn them against each other by manipulating their past traumas. Another plotline might be them training a new group of young heroes in Young Justice together. It would show their different teaching styles and how they complement each other.
One possible fanfiction could be about Dick Grayson struggling with an illness that not only affects his physical health but also makes him feel isolated and sad within the Young Justice team. He might be pushing his friends away, thinking he's a burden, while they're trying to reach out and help him.
There's a fanfiction called 'Dick and Batgirl: Young Justice Allies'. In this one, it focuses on how Dick and Batgirl become important allies in the Young Justice team. It shows their individual skills and how they complement each other. They start off with a bit of a rocky relationship but as they understand each other more, they become a force to be reckoned with in the team.
One great piece of Dick and Batgirl Young Justice fanfiction is 'The Gotham Nights'. It focuses on their partnership during a particularly tough time in Gotham. The author beautifully portrays their relationship, with Dick's acrobatic skills and Batgirl's intelligence working together seamlessly. Another one is 'Young Justice: Partners in the Shadows'. This fic delves into their early days in Young Justice, how they learned to trust each other and grow as heroes side by side.