Sorry I don't remember who the videos were from, and to be clear I don't personally use either YouTube or WallStreetBets as a source of investment advice - I tend to just stick to a super simple passive investment strategy. I just remember seeing some videos in my feed on YouTube and thinking "wow this is actually better than a lot of what I've seen on CNBC".
As an example, I did do a quick search just now on YouTube and a guy named Charlie Chang came up. [1]
I haven't actually watched any of his videos before, but I took a look through his introductory video and it all looks like pretty sound advice to me. He also does monthly videos where he recommends specific stock picks, and his fundamentals-based approached seemed totally reasonable to me. This is the type of content I had in mind when I said there are reasonable videos being published on YouTube.
[1] https://www.youtube.com/watch?v=giGcuofIYis