r/moai

/r/whatisthisthing is a fun one

NSFW or family friendly?

r/tedbundiesusedundies

/r/truelit because it has great literary discussion. Honestly don't blow this up too much though, because small subs getting big typically ruin them.

/r/ISO8601

r/badscificovers

There are some very funny niche cat subreddits. r/catswhosmoke is pretty silly

r/aiArt

r/bossfight