Docurama was a label specializing in documentaries. Another one that has sadly folded, though their titles are still available from Amazon.
The Atomic Cafe (1982/2016)
Crisis: Behind a Presidential Commitment (1963/2011)
Dont Look Back (1967/1998)
Maya Lin: A Strong Clear Vision (1994/2023)
Primary (1960/1990)
A Time for Burning (1966/2005)
The Wobblies (1979/2021)