Comment by 8organicbits

I think the problem is that it's hard to curate feeds in a language you don't understand. I've been building an uncurated index of OPML blogrolls, with no language restriction. The OPML blogrolls are curated by their owners, so someone decided they met some inclusion criteria, but the overall list is uncurated.

https://alexsci.com/rss-blogroll-network/