Best (and free) way to turn yourself into AI Art.

Apologies if this has already been discussed.

I want to create a scene (through a series of images) with myself and my friend. How can something like that be done?

So far, I've found YouTube videos where they describe Midjourney + Dreambooth as one way to do it, but that's not free.

Please suggest better ways to do it. I'm okay with having to code.