I need something that lingers on indulgence in excess, with characters exploring material pleasures (psychoactive drugs are a plus), and/or what they believe to be aesthetic ideals

Hello! I'd love to read something that includes a few of these themes from the title. For a few vibes reference I'd point to characters like Anne Rice's Lestat and Oscar Wilde's Lord Henry&Dorian Gray. Literary is good but not required. I'm looking for a bit of hedonism, decadence and pompous people discussing beauty.