I loved comic books when I was a kid!
I still have a few from my childhood The Archies, Scooby Doo, and Pink Panther.
These issues haven’t increased in value, but I don’t care. They were fun when I bought them and they’re still fun to look through.

1970s comic books
Now I’m not a comic book collector, but occasionally I will pick one up at a flea market.
But if you are a serious collector then I would highly recommend the blog: The Comic Speculator.
It’s written by Matt Baum. He’s a comic book “Worthologist” for the online collectible site WorthPoint.