John Walker 's Books
A very well recieved series by John Walker are the books, featuring tropes. The most popular books are Darkest Hour: Liberation War Book 1, Countdown, True Cost: The Descendants War Book 5, Triton: The Descendants War Book 1, Prophecy: The Descendants War Book 6, Deep Dive: Legacy War Book 5, Marooned: Legacy War Book 4, which was published in 2022.
Darkest Hour: Liberati
Countdown
True Cost: The Descend
Triton: The Descendant
Prophecy: The Descenda
Deep Dive: Legacy War 
Marooned: Legacy War B