To write good 80s band fanfiction, you need to capture the essence of the era. Use the right lingo, describe the fashion of the 80s, like big hair and neon clothes. If you're writing about a band like Wham!, you can set the story in a disco - like club where the characters dance to their music. Also, add some drama. Maybe there's a rivalry between two fans over who gets to meet the band first.
First, research the band thoroughly. Know their music, their history, and the personalities of the band members. For example, if you're writing about Queen, understand Freddie Mercury's flamboyant stage presence and his songwriting genius. Then, create interesting characters that interact with the band in a believable way. It could be a roadie who has a secret talent for singing and catches the eye of the lead singer.
Well, start with a strong concept. Let's say you're into U2. You could write a fanfiction where a journalist is assigned to do an in - depth interview with the band. But the journalist has a personal vendetta against one of the members from a past encounter. As you write, make sure to incorporate the band's music into the story. Describe how their songs affect the characters' emotions. For example, when a character is feeling down, they listen to U2's 'With or Without You' and it gives them hope. Also, don't be afraid to deviate from the real - life story of the band a bit to create a more engaging plot.