Actually, I have a few thoughts. About Fight Club. And they aren’t about the book (which I have yet to read)
1. If you think that the lessons from Fight Club are in the vein of Marx and anti-capitalism, sure, there are some lessons there. But the really interesting connections are to the psychology of mass movements, a topic that invokes Eric Hoffer’s seminal work The True Believer: Thoughts on the Nature of Mass Movements.
2. Viewing Fight Club through a Dostoyevskian lens also yields many insights. Indeed, the main character’s psychological fragmentation is a core theme of the narrative through which the narrative itself is possible. Here is a brief summary of Dostoyevsky that those not familiar might find useful.
3. Heidegger’s insights on what he calls ‘techne‘ also have much to offer, though I find Heidegger only worth mentioning for his exposition on a few concepts and find other thinkers provide much more fruitful avenues for development.