https://civitai.com/models/69741

Trigger:UNDERGROUNDCLUB

This LoRA is intended to produce images of crowded underground nightclubs and raves. I'm reasonably happy with the results even though it can be a little wilfull; it seems to want to create certain room layouts and resist showing people from the front if used by itself. However, your mileage may vary.

May work well in combination with character lora's.

For good results, prompt for things like crowds, the color of lighting, style of space (ie; underground, industrial, etc).