Sure, there are light novels for Boruto. They are a great addition for fans who want to delve deeper into the world. For example, they might explore the backstories of some minor characters or give more in - depth looks at certain missions that Boruto and his friends go on. They offer a different perspective on the series compared to the visual mediums of anime and manga.
The Boruto manga is pretty straightforward in its storytelling and avoids filler. It keeps the narrative moving along without including extraneous material that doesn't contribute to the main storyline.
No, Boruto is alive in the manga. The plot hasn't led to his death. However, the manga is ongoing, and anything could happen in the later developments.