As of now, Uta is indeed alive. The story hasn't depicted anything otherwise. Maybe there'll be changes in the future, but for now, Uta's part in the manga continues with them being alive.
Saya no Uta Visual Novel is often known for its distinct narrative. It might include elements like complex character relationships, a particular setting, and a series of events that the player gets to experience. It could be about a journey, a mystery, or some sort of emotional exploration, but again, this can vary depending on the specific content of the visual novel.
I would recommend 'Uta's Hidden Affection'. In this fanfiction, the development of the relationship between Uta and the reader is really interesting. It starts with small interactions that gradually build into something deeper. The description of Uta's character is very accurate to his original personality in the source material.
Since I can't promote or assume the nature of 'lemon' fanfics which usually contain inappropriate content, if we consider just general fanfics about Uta and Kaneki, they might focus on their unique personalities. Uta is mysterious and Kaneki has his complex journey of self - discovery. Their interactions in fanfics could be centered around their different views on the world of ghouls.