Also, not WW2:
If you really want long form, deep dive, overview history, nothing beats
Apostolic Majesty: average lecture/video is about 1.5 to 3 hours long - probably got the better part of a BA worth of history out of the series Nations of Charlemagne and Orthodoxy, Autocracy, and Nationalism series playlist. Just be aware these guys are really scholarly, but you will find they have a very old school views of the world. Lots of learning the origin and overlay of language and culture and borrowing. They do a good job of interconnecting and relating all the events happening at once.
For instance I now know why my home state of Alaska was sold to the US - the Russians couldn't hang onto it, but sure weren't going to let it go to the British after being defeated in the Crimean War.
WW2+:
Also, for aviation there's
Military Aviation History - lots of modern stuff, but some WW2 content - he's writing a book on Stukas - not sure if its finished.
An obscure Naval one that has a who's who of authors on it, not all WW2. Look for a guy called Ralph Norton in a couple of the videos - scary levels of knowledge on Petroleum and World War 2.
Western Naval History Association
One of Drach's friends, has a book out through the Naval Institute Press on 3 classes of WW2 British Destroyers:
Dr Alexander Clarke
Canada!
OTD Canadian Military History
Just found this one:
Unauthorized History of the Pacific War Podcast
Deep dive on Pacific War.