It's a bit tricky to pin down Newt Scamander's exact age in the novel. However, we can make some educated guesses based on his experiences and the time period the story is set in. My estimate would be that he's around 23 or 24 years old.
Perhaps there's a prophecy in the wizarding world that only a dragon rider can stop an upcoming war. Newt, being the expert on magical creatures, is sought out to be this dragon rider. He initially resists, but when he realizes the importance of the task, he embarks on a journey to find a suitable dragon. Along the way, he meets other characters who help him in his quest, and he has to learn the ways of dragon riding from scratch, which is full of both comical and dangerous moments.
He could ride a dragon to explore uncharted magical lands. Dragons are known for their ability to reach far - off places quickly. Newt, with his curiosity, would use this opportunity to discover new magical creatures and habitats that are otherwise inaccessible. For example, he might find a hidden valley filled with flying serpents that have unique magical properties.
One great fem Harry and Newt Scamander fanfiction is 'The Unlikely Bond'. It beautifully weaves their characters together in a world where magic is both a mystery and a solution. Another good one is 'Magic's New Path' which shows how fem Harry's unique perspective and Newt's love for magical creatures can create an interesting adventure.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of fanfictions, and you can easily search for Theseus Scamander - related stories there. There are also some smaller, more niche fanfiction communities where you might find some unique takes on Theseus' story.
One common theme is the exploration of gender roles in the wizarding world. How would a female Newt be treated differently? Another theme is the relationship with magical creatures. Since Newt is known for his connection with them, a female Newt might have a different approach. For example, in some fanfictions, a female Newt is more nurturing towards the creatures.
One great 'Newt Scamander and Dragons' fanfiction is 'The Dragon Keeper's Tale by Newt'. It beautifully weaves a story where Newt discovers a new breed of dragon in a hidden valley. The author does an amazing job of describing the dragon's appearance and behavior, making it seem like a real part of the wizarding world. Another one is 'Newt and the Dragon's Bond'. In this fic, Newt forms an unexpected bond with a dragon that he rescues from a poacher. It's really heartwarming to read how their relationship develops over time.
Well, 'Dragon Whisperer Newt' is quite creative. It imagines Newt having the ability to actually communicate with dragons on a deeper level, not just understand their needs but have full - blown conversations. It changes the dynamic of his work as a magizoologist completely. Another creative one is 'Newt's Dragon Sanctuary'. It's set in a future where Newt has established a huge sanctuary for all kinds of dragons, and the fic explores the politics and relationships within this dragon - filled world.