I was in the same situation — using rss-parser, but eventually faced with some issues.
It also turned out, its performance is not that good. In benchmarks, it's 4-5x slower. In my case, switching to Feedsmith almost doubled the overall parsing speed. This is including the fetching of feeds, which is the main bottleneck.
That looks like a crowdsourced project for turning arbitrary sites into RSS which is very cool, but I don't see a way to get a large RSS data set out of it. And with about 5000 sources (I think) it's not as large as what I was hoping for, but it could be a good complementary source.
In some other threads people write that invidious also may have problems. Eventually any bot can have problems when reading RSS feeds. Maybe the ones with API key will not have problems. Reddit: https://www.reddit.com/r/rss/comments/1aduw8j/did_youtube_ki...