For best outputs:

Sampler: DPM++ 3M SDE Karras / Any, actually

No particular number of steps or cfg; CLIP skip 1 ~ 2

Optional for higher realism: KodakPhotoMaybe embedding (included in most galleries), adding the keyword "4k", adding the LoRa "EnvyBetterHiresFixXL01" at a weight of 1 (including in most galleries)

Neg post may vary completely. Many galleries include many different negs. The model itself doesn't need too great thing as neg prompt anyways.