For educative scientific YT channels I’d recommend Veritasium, The Action Lab and NileRed to name a few. They produce top quality scientific videos about really interesting phenomenas and experiments. And the best part is they make the concepts simple to understand without the need of a degree or smth lol
I sometimes have to use Reddit via web browser for search results on niche subjects. Feeling quite neutral about it.
I wish Lemmy could also be shown on search results too