Yes, there are quite a few good ones. You can start by looking on fanfiction.net or Archive of Our Own. Just search for 'Peter Maximoff and Wanda Maximoff' and you'll find a variety of stories, from action - packed adventures to more emotional, character - study type fics.
One popular theme is family. Since they are siblings, stories often revolve around their family bond, like how they protect each other. Another is power exploration. Writers like to show how their powers can work together or clash. And of course, friendship themes are also common, as they are part of the same universe and could be friends beyond just being siblings.
No, Wanda Maximoff isn't typically depicted as white in the comics. Her ethnicity and background have been established differently within the comic storylines.
There's also 'Wanda's Redemption Arc' which is a very popular wanda maximoff fanfiction. It focuses on Wanda's attempts to make amends for her past actions. The character development in this one is top - notch and it gives readers a deeper understanding of Wanda as a character.
I really like 'Wanda in a New World'. In this fanfic, Wanda is transported to an alternate universe where she has to figure out how to get back home while also dealing with different versions of her friends and enemies. It's a really interesting take on her character. Also, 'The Scarlet Witch's Allies' is a fanfic that shows Wanda forming new alliances and how she uses her powers in unique ways within those relationships.
One great peter maximoff fanfiction is 'Speedy Encounters'. It has an engaging plot where Peter's speed is used in really creative ways. The author does a wonderful job of capturing his character's charm and quick - witted nature.
In certain comic arcs, Wanda Maximoff does meet her demise. But comic storylines can be complex and sometimes she's brought back or her death is part of a larger plot twist.