Well, one way is to use open-source software for creating and editing the anthology. And try to reach out to a community of comic enthusiasts who might help with spreading the word without expecting any payment. Another option is to partner with local libraries or community centers that could offer some space or resources for free.
You could start by collaborating with like-minded artists who are willing to contribute their work for free. Also, utilize free online platforms for publishing and promotion.
To launch a comic anthology with no money, you can look for sponsors or grants. You could also organize a crowdfunding campaign and offer rewards for contributions. Additionally, reach out to indie comic stores or conventions to see if they'd be willing to showcase your anthology for free to help gain exposure.