The World At War (can't find on streaming, probably have to check out from your library, but the definitive documentary on WWII)
The First World War (
Amazon Prime)
The Other One: The Long Strange Trip of Bob Weir (Netflix)
The History Of The Eagles (another one not on streaming, but worth visiting your library)
The Mine Wars (ditto)
Ken Burns The Civil War (PBS)
Ken Burns Baseball (PBS)
Ken Burns Benjamin Franklin
If you're into sports, there are a number of 30 for 30 documentaries that are really good. Some are available on
Disney+, some on ESPN+ and they rerun some on ESPN from time to time. Some of my favorites:
Broke
The U
The Two Escobars
Pony Excess
You Don't Know Bo
Celtics/Lakers: Best of Enemies.
Even if you don't like sports, Broke is an excellent look at how entertainers make a lot of money and often lose it all.