You don't even need to add much more to the prompts. Just a few words, and it changes the characters you get. It won't always produce something good, but at least we have a lot of control over what it produces. Examples:

"An image of an Indian female archeologist adventurer who wears a hat and uses a bullwhip" (https://sora.com/g/gen_01jqzet1p8fjaa808bmqnvf7rk)

"An image of a fat Russian archeologist adventurer who wears a hat and uses a bullwhip" (https://sora.com/g/gen_01jqzfk727erer98a6yexafe70)

"An image of a skeletal archeologist adventurer who wears a hat and uses a bullwhip" (https://sora.com/g/gen_01jqzfnaz6fgqvgwqw8w4ntf6p)

Or, give ChatGPT a starting image. (https://sora.com/g/gen_01jqzf7vdweg4v5198aqfynjym)

And by further remixing the images ChatGPT produces, you can get your images to be even more unique. (https://sora.com/g/gen_01jqzfzmbze0wa310m42f8j5yw)

All four of those are dressed like Indiana Jones. They look like different versions of Indiana Jones you'd see in super hero multi-verse story.

Those are great, I would watch any one of those movies. Maybe even the "Across the Indiana-Verse" one where they are all pulled into a single dimension.

Archeologists don't actually wear fedora hats.

And the stereotypical meme "archeologist hat" is the pith helmet.