Movies about artistic obsession and desperation

Hello, I’m just asking for what movies you feel fall under this category. I want to make a video essay about these films I’m thinking to watch maybe 30? I know all the iconic once’s such as I, Tonya, Whiplash, etc but I’d like both iconic ones and once you feel are underground or underrated. Obviously language and region doesn’t matter and is welcomed as long as I can find the full movie to watch in English or with English subtitles. Thank you!