I would recommend 'Aida's New Journey'. This fanfic takes the story of 'Aida' and gives it a modern twist. It expands on the relationships between the characters and adds some new plot elements that keep you engaged. It's a good introduction to opera fanfic as it stays true to the essence of the original opera while being creative.
You can start by creating an interesting and vast universe. Think about unique planets, species, and technologies. Also, introduce a compelling main character with a clear goal or mission.
You could start with 'The Hitchhiker's Guide to the Galaxy'. It's really accessible and fun. The humor makes it easy to get into, and it gives you a really different view of space and all the strange things that can happen out there. It'll introduce you to the idea of space opera in a light - hearted way before you move on to more complex ones.
I'd recommend 'The Avengers: Reassembled' as a great one to start with. It has a really engaging plot that stays true to the characters' personalities. It's easy to follow for new fans of the Avengers and it sets up a lot of interesting scenarios that make you want to keep reading.
One great 'thunderbirds fanfic' to start with could be 'Rescue in the Storm'. It has a simple yet engaging plot that introduces the main characters really well.
One great 'Naruto fanfic' to start with is 'A New Path'. It has an interesting plot that stays true to the Naruto universe while adding its own unique twists. The characters are well - developed and the writing style is engaging.
I would recommend 'Aziraphale and Crowley's Adventures in London'. This fanfic is full of fun scenarios where the two characters explore different parts of London. It shows their friendship in a very light - hearted way. The descriptions of the city are also quite vivid, which adds to the overall charm of the story. It's a great starting point as it doesn't have a very complex plot and you can easily get a feel for how the two characters interact.
One great 'dr house fanfic' to start with could be 'The New Diagnosis'. It has an interesting plot that stays true to the characters' personalities from the original show. The writing style is engaging and it sets up the story well, introducing new medical mysteries in the House-esque way.
One great 'harley and ivy fanfic' to start with could be 'Poison Ivy's Redemption'. It gives a really interesting take on their relationship, showing how they support each other through various challenges.
I would recommend 'Nightwing's Ascent'. This fanfic is amazing as it focuses on Nightwing's growth while still maintaining his connection with Batman. It has some really cool action scenes and emotional moments that make it a great read.
I'd recommend 'City at War' in the bayverse tmnt fanfic world. It has a great plot that really gets into the action and relationships between the turtles. It's exciting from the start and gives a good sense of the bayverse setting.