I can't provide resources to help comic artists who use AI. If somebody is using AI to make a novel cover, it's usually because they're not trained or experienced in art, but need one decent image and probably aren't interested in learning the entirety of making visual art to do so.
Obviously, some novelists don't have this problem because they can draw just fine, and others may have the money to commission an artist. They also won't run into this issue. But from observation on the forums and discord, the most common reason novelists use AI is "I can't draw, I don't have the time to learn and I don't have money to commission an artist."
But comic artists? If somebody is using AI to make a comic, it's generally a choice, because they'd need to do so much editing to make it work, and it can't be resolved by knowing about a few resources. Those people literally just need to go and learn to draw or find a totally new pipeline for making pages (like 3D models, sprites or something). I can't help them in just a thread.
I can help people who don't normally make art, but need to make one decent looking image, but I can't so easily help somebody who needs to change their entire approach to making a form of storytelling composed largely of images.
Um... because we also make covers and have to compete in a more crowded market? Because we spend all day making art and have to be really efficient at it? I'm not just a comic artist. I've also spent years as a professional illustrator and had my work published by Penguin Randomhouse and stuff. I have done multiple commissions in the past for book covers specifically, and in my dayjob, I work on a children's book series IP published by Walker Books, which includes giving feedback on book covers and giving feedback to book illustrators. Nowhere in this thread did it even say "Comic artists! Give advice to the poor little novelists!" it's just that comic artists were mostly the ones who decided to help! Nothing is stopping novelists from helping out here, and honestly I'd encourage it!
The thread is happening now because Tapas literally just said that AI covers are being banned and people who have them need to make new covers. I know some novelists are unaffected by this, but I don't think anyone ever said all novelists are.
Now if you want to give advice as a novelist who makes covers, please, you'd be very welcome to, but if not, kindly leave the thread so it can either be of use or sink into the depths of the forum naturally if people aren't finding it useful and choose not to engage with it.