ComicsMaker.ai is a good example. It relies on AI to do much of the comic creation work for you, with tools like Text to Image, Image to Image, Pose Creation and Character Training. It can produce high realism and custom characters, and you can export your comics as PDFs or CBZs. The service also has a community gallery where you can share your comics to earn credits.
Another tool worth a look is AI Comic Factory. The service uses Hugging Face Space to create comics in a variety of styles -- American, Japanese, Nihonga -- and offers multiple layout choices and the ability to modify prompts. You can upload your own images to customize the look of your comics. Pricing is on a sliding scale, so it's available to both enthusiasts and pros.
If you prefer a more streamlined interface with a focus on consistency and control, check out Dashtoon Studio. It's got a library of characters, multiple style options and AI tools to convert storyboards into comics. You can publish and monetize your comics through the Dashtoon Reader app, and the Creator's Program offers global audience reach and monetization options.