Apparently the trilogy is considered by the fandom as one of the few worthwhile novel productions of the franchise and my expectations weren't really high, but I was pleasantly surprised to find some thought actually went into the characterization and setting
The character Bane starts life as a indebted indentured corporate slave on a mining world while also abused by his father, the book follows his increasing radicalization by the Sith and is largely centered around how he constructs his own specific brand of Sith ideology
The book presents a pretty accurate portray of how radicalization takes place and follows the rise to power of one of the more interesting Sith characters in the lore
https://staraudiobook.net/path-of-destruction-audiobook/ in case anyone else is bored at work
Been going through my collection of books just now, and apart from the Thrawn trilogy and Plagueis, I can also recommend "the hand of Thrawn" duology ("Specter of the Past" and "Vision of the Future") as well as the Han Solo trilogy ("The Paradise Snare", "The Hutt Gambit" and "Rebel Dawn").
I could probably recommend a few more, if you're interested, but these books are definitely worth the read.