The Darth Plagueis novel also added a ton of context to The Phantom Menace for me. It’s a long history of Palpatine and Plagueis that goes all the way up to the Battle of Naboo, so it really feels like you can see clearly Plagueis’ influence on Palpatine and his scheming. If I remember correctly, Luceno even does a couple of the scenes from the movie, with way more detail. I rewatched it after finishing the book and got a lot more out of it.