Toga is still alive in the manga. The creators haven't decided to end her character's journey with death. Usually, such major plot points are well-signaled and haven't happened for Toga so far.
As of the latest chapters, Izuku and Uraraka have shown some mutual interest and closeness, but it's not a definite romantic pairing yet. It's still evolving in the story.
Some Himiko Toga fanfictions focus on her backstory. They might expand on her childhood, her family, and how she came to be the way she is. This can give readers a deeper understanding of her character and make her more relatable, even with her rather extreme actions in the original story.