A good number of those subreddits became breeding grounds for not-so-subtle racist dogwhistling, so I don't really miss them.
A lot of the others sort of ran through the actually good, viable content before expanding to being less good (/r/YoutubeHaiku basically dropping the 'unscripted' requirement and becoming essentially, short-form skits and streamer clips). I tend to follow people with content I like directly on TikTok and Youtube these days. Aggregators of content tend to go either generic or toxic, I find.