I discovered Touhou through two Youtubers I watch, Raocow and Nakateleeli to be exact. Raocow had done a Super Marisa World let's play, and it looked interesting. Then, I found out how often Touhou themes and settings are used in the various romhacks. However, only the EoSD cast get real representation in those, which is a shame. Nakateleeli on the other hand let's plays alot of various Touhou doujin games. I'd say my favorite one that he did was his Touhou Mother let's play, and how he actually put the time to give character bios for every character when they appeared, though I believe this was only up through SA. I hadn't actually tried a Touhou game until last year, but when I did, I fully regret not trying them when I first heard about Touhou in the first place, as it's now one of my favorite things to play in my free time!