GP, the links above are far out of date, you want reddit.com/r/discodiffusion and the Disco Diffusion v4.1 (note: I'm specifically saying 4.1 instead of 5.0, focused more on animation and trades off quality for speed of frame generation)

They're very, very, easy to use if you have any familiarity with coding. The hard part is patience.

Midjourney is (hand-waving) a Discord UI on top of that. Again, hand-waving, there's some secret sauce Midjourney does that makes it more likely to recognize your prompt. I assume they swapped out a model somewhere with one they trained on a wider variety of images