This already happens, this is exactly how Midjourney (which used Stable Diffusion under the hood) works. You write a prompt, it spits back a grid of images and

This already happens, this is exactly how Midjourney (which used Stable Diffusion under the hood) works. You write a prompt, it spits back a grid of images and you mark which ones you like, then it iterates until you decide on your output image.