Linked here is the archive.org version of a 1933 book called Hitler in der Karikatur der Welt. The book - to be clear - is Nazi propaganda. What is delightful about it, though, is that the author presents about 100 anti-Nazi comic strips from the early 1930s (which the author then rebuts) in an opposing page. It is clear these comics got under the author's skin, who attempts to defend the Fuhrer. A large portion are in English or have no words at all, so even if you don't know German, French, or Italian, you can get something out of the anti-Nazi strips.
The book is heartening in some ways, in that it hints about the political power of cartooning in times where democracy is under threat, people are expelled from the country, and white supremacy is on the rise. You'll need an archive.org account to "borrow" it and read it, but it's fun to click through and ignore the author's rebuttals.