My first exposure to Touhou was by this guy on Twitch who went by the name Yggdrasiface. I watched him for half a year without really looking into the series being lost as to what game I was watching him play. Then he streamed an alttp randomizer while the Touhou Maiden bgm was playing in the background, asked for the link to the playlist, listened to that for two months, then I started actually looking into the series and five months later, here I am.
If I had stopped watching Yggdrasiface out of sheer overwhelmness, I would not be here. Looking back, I’m amazing I managed to continue watching with zero clue as to what Touhou was for half a year.