There could be a fanfiction where Bella's blindness makes her more in tune with her other senses, like hearing. In this story, she might be able to hear the vampires' movements in a way that normal humans can't, and this ability helps her in the Twilight world. She could also have a deeper emotional connection with Edward as she experiences the world around her in a unique way.
One interesting 'bella is blind' fanfiction could be where Bella's blindness adds a new layer to her relationship with Edward. Maybe he has to use his vampire senses in a different way to protect her. For example, he might rely more on his sense of smell to detect danger around her since she can't see it coming.
One great 'Twilight Bella is alpha' fanfiction could be 'Bella's Alpha Ascent'. In this fic, Bella discovers her inner alpha strength in a really unique way. It might show her leading the pack in a new way, different from the normal Twilight dynamics.
One interesting Bella and Charlie fanfiction could be where Charlie discovers Bella's vampire side in a more comical way. For example, he walks in on her using her super speed to clean the house and just stares in shock.
You can start by looking on fanfiction websites such as Archive of Our Own (AO3). It has a vast collection of Twilight fanfictions, and you can use the search function to specifically look for ones where Bella is blind. Just type in 'bella is blind twilight' in the search bar, and it should show relevant results.
Some fanfictions could revolve around the idea of baby Bella having a special connection to the supernatural world right from infancy. This could lead to all sorts of adventures and unique storylines that deviate from the original 'Twilight' plot. For instance, she might have some sort of premonition ability as a baby that the other characters have to figure out.
One interesting Bella's brother Twilight fanfiction could be where he has some sort of hidden power that he has to keep secret from everyone in Forks. Maybe he can communicate with the animals in a way that's different from the werewolves in the story.
One popular Edward Blind Twilight fanfiction might be 'A New Perspective'. It delves into how Bella's relationship with Edward would be different if he was blind. It shows a more vulnerable side of Edward and how Bella has to adapt to care for him in a different way.
One great 'Blind Twilight Sparkle' fanfiction could be 'Twilight's New Perspective'. In this story, Twilight Sparkle loses her sight but discovers new ways to use her magic and understand the world around her. It's really inspiring as it shows her determination and growth in a difficult situation.
There could also be a fanfiction where the kiss is a dare or a result of some sort of game. For example, the Cullens and Bella are playing a truth or dare - like game among themselves, and when it's Alice's turn, she chooses 'dare' and is dared to kiss Bella. This could lead to a whole new exploration of their relationship and how the other Cullens react to it.
One common plotline could be Bella getting injured in a way not shown in the original Twilight series and Edward being overly protective in the hospital setting. For example, she might be in a car accident on her way to visit Jacob and end up in the hospital. Edward would then be by her side constantly, causing some tension with the werewolf pack who also want to check on her.
One popular fanfiction could be about Bella using her vampire abilities to protect Edward from some new supernatural threat in Forks. Maybe she has to face a powerful vampire coven that has a vendetta against the Cullens, and in the process, her relationship with Edward deepens in new and unexpected ways.