u/Usual_Farm7617 and u/SiriusFoot already posted my favorite YouTube docs, but if you want a wider selection you can check out https://topdocumentaryfilms.com/. It is a collection of free documentaries on a wide variety of topics. Somehow I still like those YouTube channels better, but its a good site to bookmark. Source: about 1 year ago

• Documentaries:(Find mostly on Hulu, Netflix, or Youtube). Fairly comprehensive list can be found here: http://topdocumentaryfilms.com and archive.org. Source: over 1 year ago

I don't have any off the top of my head but check out this site. Source: over 1 year ago

Topdocumentaryfilms.com you can watch the best documentaries here. Source: about 2 years ago

• Documentaries:(Find mostly on Hulu, Netflix, or Youtube). Fairly comprehensive list can be found here: http://topdocumentaryfilms.com and archive.org. Source: over 2 years ago

I actually used https://trace.moe/ api for this website. - Source: Hacker News / 11 days ago

For reference another site that does this with images is https://trace.moe/. - Source: Hacker News / 11 days ago

Https://trace.moe/ For the next time with this it is easy to find out the name of a show. Source: 12 months ago

Trace.moe (2016-today) or formerly known as whatanime.ga (2014-2016) is surprisingly old! Source: about 1 year ago

Don't know the show, but trace.moe results:. Source: about 1 year ago