After additional consideration, I apologize for my previous response. 

At this time, there are no AI image generators suitable for easily making comics, as any recurring characters or scenes will require careful fine tuning of the base model.

However, Stable diffusion is still a good option if your comic does not require consistency, or if you are willing to invest some time on any of the numerous method training it to your usecase (via Textual Inversion, Dreambooth finetuning, Low Rank Adaptation, or Hypernetworks)
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