I think everyone has suggested the best, but it all will depend on how you'll use it (prompt) to make the best out of any AI image generator i think these will help you.https://adeptdept.com/blog/ai-image-prompting-101-complete-guide/ https://dorik.com/blog/how-to-write-ai-image-prompts https://letsenhance.io/blog/article/ai-text-prompt-guide/

Also, if you use any LLM model you can even prompt it to generate prompts for you.