As requested, here are some places to look. Golden age comics are the best for this sort of silly stuff and many are public domain, so there are multiple places to look for them. Be warned, it is overwhelming. They churned out comics back then like they were gum wrappers.
https://digitalcomicmuseum.com/
https://www.pulpmagazines.org/old-comics/
https://www.comicweb.com/golden-age-comics.html
Feel like wading through the mess of the Internet Archive if you like: https://archive.org/details/comics
If you wish to brave the evil that is Reddit, there is: https://www.reddit.com/r/GoldenAgeComics/
If anyone has other resources, feel free to add them. Please no pirate sites, there’s a lot of “read today’s comics online for free” sites which would violate lemmy.world ToS.
Should/can we post context in the posts? It’s hard with copyrighted comics, because you can only really link directly to pirate websites. The best you can do otherwise is say like “Superman (1939) #7, page 25”.
I would avoid links to pirated content since it violates lemmy.world ToS, but feel free to link to any PD comics. I think otherwise, yeah, you’ll just have to say the comic and issue number.
I would prefer adding context in a spoilers tag, if you’re going to do it. Especially if you’re going to describe the situation. And also what Squid recommended.
Spoilers tag just lets everyone else maintain ignorance for the lols.