There used to be a lot of gold among the trash in YT comments back in the day, but for some reason YT will show you spam comments from two days ago over comments with hundreds of likes from a year ago, so it's become literally impossible to find those.

They don't allow you to sort by votes and their "best comments" sorting is complete BS.

Nowadays I just block YouTube comments out with uBlock Origin, reading through them is rarely worth the time and is usually just a pointless distraction.