The author Rick Riordan does a great job of creating series that feature a diverse group of characters. I have read nearly all his books from Percy Jackson to the Kane Chronicle series. There is only one book left to read of the Heroes of Olympus series which Nico is actually featured quite a bit in. Following that I would like to read The Trials of Apollo and the Magnus Chase and Gods of Asgard series.
Artwork: Nico di Angelo by MonsieArts