One possible plot could be that Taemin, as a vampire, has to struggle with his new identity. He might be hunted by vampire hunters while also trying to control his newfound thirst for blood. Maybe he tries to keep his transformation a secret from his SHINee bandmates at first, but as time goes on, strange things start to happen around him that make it difficult to hide.
Romance is a very common theme. Since it's about Taemin as a vampire, there's often a love story between him and a human or another supernatural being.
There's a fanfiction titled 'Taemin's Vampire Coven'. In this story, Taemin leads his vampire coven through various challenges in a modern - day setting. It delves deep into the vampire lore, and the way Taemin's character is portrayed as a strong and yet conflicted vampire leader is really engaging. It also has some great side characters that add to the overall charm of the story.
There are many 'shinee taemin vampire wattpad fanfiction' out there. Another great one is 'My Encounter with Vampire Taemin'. This story details the experiences of the main character who unexpectedly meets Taemin, a vampire. It delves deep into their relationship development, from initial fear and suspicion to deep love. It also has some great descriptions of the vampire world Taemin belongs to, which makes it a really immersive read.
You can try fanfiction.net. It has a large collection of fanfics from various fandoms, and there are likely quite a few 'choi minho lee taemin fanfic' there.
One popular 'choi minho lee taemin fanfic' is 'The Bond of Brothers'. It beautifully depicts their friendship and the adventures they might have together.
Taemin would probably be a very conflicted character. He's used to his normal life as a SHINee member, and suddenly becoming a vampire would turn his world upside down. He'd be confused, scared, but also curious about his new powers.
One characteristic is that they often focus on the strong friendship among the SHINee members. They show how they support and care for each other through various fictional scenarios.
One of the best Shinee fanfics could be 'The Shinee World' which delves deep into the members' relationships and their journey in the music industry. It's filled with heartwarming moments and great character development.