Well, there are a few ways. Sometimes, libraries have digital collections of comics that you can access for free with a library card. Also, some comic creators or publishers might offer free issues or samples on their official websites. Just keep in mind that finding completely free and legal options can be a bit challenging.
It's possible to read comic books for free online, but you need to be cautious. Some sites might have copyright issues, and the reading experience might not be as good as paid or authorized platforms.