Cane Toads: An Unnatural History.

Air Guitar Nation.

The Social Dilemma

Ironic, I know.

If you're looking for a documentary combined with a horror, David Farrier's Tickled makes for a great watch.

The Fire Within Werner Herzog has a more well known volcano documentary but this one is better.
He uses footage filmed by a couple who died in a pyroclastic flow (imagine Herzog saying that!) in Japan. Essentially it’s Herzog watching them watching volcanoes.

Wild Wild Country

A bit overlong (typical for Netflix), but it has that irresistible "Surely this won't get any crazier" thing going for it. It's also a bit unique among cult documentaries in that the cult leader (technically second in command I think, but the de facto leader for a time) is interviewed and is remarkably candid about everything.

I love docs about civil engineering, especially bridges and dams. Modern Marvels has a couple of good episodes on the subject, told/produced in that program's typical format, including the Golden Gate Bridge and The Hoover Dam.

But my favorite is a 1997 episode of Nova called Super Bridge ( https://thetvdb.com/series/nova/episodes/1357201 ). The footage is great, the narration is great (I think its Hal Holbrook!), the storytelling is great, and it showed a great deal of stuff I didn't know I would be fascinated by, while remaining down to earth.

https://youtu.be/4WXoopIH1_o

Really shows how the world took down China

I finished watching Quiet on Set: The Dark Side of Kids TV available on HBO Max. As the title suggests, it's about the experiences that child actors had when they were working for Nickelodeon in the late 90s and early 00s. I found it very interesting and informative. Beware, it's not just about child labor...I wish it was.

I feel I must give a trigger warning. ::: spoiler It interviews many child-actors that are now adults, and they discuss first-hand experiences with predatory groomers, abuse, and resulting impact on their lives. If you have children, this documentary may be extra difficult to watch since they interview parents of the victims as well. :::

• The Magic of Mushrooms
• The Power of the Placebo

First two that come to mind.

Nuclear Nightmares, a documentary about our fear of radiation:

https://www.dailymotion.com/video/x7pqwo8

When animals attack. A 90s shockumentary. Or more of a TV show? It only had like 4 eps.

Space Jam. I grew up with it even if didn't knew who Michael Jordan was, he had a interesting career.