This will probably come off as a really pleb question but I will ask it anyway, maybe it could branch off into a more interesting discussion anyway

As someone who has over the years plugged away at 1CCing all the games, read the side manga series and tried some fan games - it still feels like there is some untapped spring of content out there waiting to be opened up. So, as such, I’m just curious where to go to discover or be informed on more things: fan games, doujinshi, untranslated works are especially interesting, etc
Don’t want to use a cancerous term like “fandom” or “community” but I do seek more than just playing the games, some fan games, and reading official works
On that note, how does touhou popularity compare to the early to mid 2000s anyway?