Yes, there are some. You can start by looking on fanfiction websites like Archive of Our Own. Just search for 'elsa x olaf fanfic' and you'll find various stories written by fans.
Olaf might tell about their journey of self - discovery. For Elsa, her struggle with her powers and learning to control them while also accepting herself. And for Anna, her loyalty and love for her sister, how she overcame difficulties in their relationship.
In 'Olaf Tells Stories', Olaf is likely the main focus or protagonist who is engaged in the act of storytelling. It could be that Olaf has unique qualities or experiences that make his stories interesting. Maybe he is a wise old man, or a young adventurer with many tales to share.
Olaf could be a friend, a family member or just someone in a story. To know what story he tells, we might need to consider the setting. For example, if it's in a school environment, perhaps he's telling a story about a science experiment gone wrong. Or if it's in a more traditional storytelling setting, it could be a folk tale passed down in his family.
Perhaps Olaf tells fairy - tales. These might include stories about princes and princesses, or magical creatures that live in hidden places. He might also tell stories about friendship and how it can overcome difficulties. For example, he could talk about a group of friends who worked together to defeat an evil wizard. Another possibility is that Olaf tells stories about his own experiences. If he is an old character, he might share memories from his youth, about the people he met and the lessons he learned along the way.
Olaf could be a fictional character in a fantasy world. He may have been created to bring a sense of fun and wonder to the story. When he tells stories, he might be trying to convey the beauty and mystery of his world, whether it's about the secrets hidden in the ice caves or the magic that happens during a snowstorm.
It could be to the little children in Arendelle. Olaf loves making people happy, especially kids, so he might be sharing his story with them to bring some joy.