>>25793
I don't think you'll find any as it's an iffy endeavor to begin with. I can probably help you since I often prompt multiple girls and multiple people gens.
There are 2 main ways to go about it:
Gacha - Through unspecific prompting, more natural composition, less prone to errors but less control over your characters
Regional prompting - Either Forge Couple or Regional, controlled characters but more prone to errors if the more characters you wanna cram into the same scene, plus extra trouble if the character's are invading each other's space (hugging, pressing against one another).
Forge couple is technically regional prompting but way more straight forward and simpler to use, I'd recommend you give it a try
https://github.com/Haoming02/sd-forge-couple
For the first method, no addons required, you want to be ambiguous and let your prompt fall as it may. For example:
>>25679
is gacha multiple girls.
You may feed several contradictory options into the prompt so you avoid clones, like: brown hair, black hair, blonde hair. short hair, long hair, tied hair, messy hair, wavy hair, straight hair, etc.
Clothing is best left unspecific, with tags such as: medieval, fur trim, emo fashion, casual, jewelry, loose clothes, armor. Since the individual detail will be randomized from a large pool of things, avoiding repeating accessories.
The same logic applies to everything else, such as eyes, expression, and whatever else.
Sex, there are options such as cooperative fellatio, cooperative paizuri, group sex, and so on.
For background characters, success depends a lot on loras, some styles are good for them, some aren't. You want tags such as:
people, crowd, crowded,
others can help such as: faceless male, public indecency, exhibitionism, surrounded, audience.
If you're crafting a really complicated scene, you can keep things such as expressions non committal and then correct with inpaint afterwards. Faces aren't as hard to inpaint as some other stuff.
The second method separates the scene and directly controls the characters shown on each region. For example:
>>25706
The easiest way is Forge Couple (link above). You can check the examples provided in the guide, it's rather straight forward.
Personally I like to use custom separators, which you can define as any word you like. And the Global effect set to "first line"
This way, you prompt as such:
Lora stuff, Style stuff, Background and scene stuff, things affecting both characters, 2girls,
_separator_
define girl on the left
_separator_
define girl on the right
What forge couple does is split the scene in regions equal to the amount of separators you use, either vertically or horizontally. You can also used the advanced option to set coordinates for what you want where. But at that point I'd just switch to regional prompting.
There's more to it, as always, but you should start experimenting with these 2 methods, depending on what you require.