What helped me is copying what others do.
Most PNG images in the AI board have the workflow embedded in them, you can import them in ComfyUI. (And I think SwarmUI lives on top of ComfyUI)
Some movie types might also have the workflow embedded in them.

It;s a good place to learn how everything connects.
Also. A weird problem I sometimes run into with other people's workflow that I get a black image.
But when I manually rebuild the workflow and it's settings I get the expected output.

CivitAI is a good place for tutorials on generic NSFW stuff. Guro, not so much. But there are threads here with guro specific lora's.

Also, don't mix and max Lora's for different checkpoints. Some might work, some not.
(ie. Use Pony lora's for Pony checkpoints and Illustrious Lora's with Illustrious Checkpoints.)
Sometimes they work, sometimes you get artistic splotches.

Also fiddle around with the Steps, sampler_name and scheduler if you get lots of fireflies.

Hope it helps.