3D model, flat shading, soft shading, no lineart/thin lineart
recommended on 0.9-1.3 (less is very bright looking) ALSO if you want more detail, a style booster is recommended.
simplistic 3D style, though it might be able to do more complex designs
increasing sampling steps can also help with quality, though it is more costly
XL ONLY: unfortunately does not look well enough for a normal lora.