This time I threw epicPhotogasm_lastUnicorn, Truality and Realisticmix666 into the blender, and again I am quite pleased!

Sampler

Euler, DDIM, DPM++ 2M SDE Karras between 25-35 steps

Hires Fix

Upscaler: 4x-Ultrasharp, LDSR (best but slowest), Remacri...

35 Steps / 0.2 Denoise / Upscale by 2x+

Resolution

512x512 / 512x640 / 512x768 / 768x512 / 640x512

Positive Prompt
Words like 'realistic', 'masterpiece', etc... are always good but not necessary depending on what you want to achieve.

Negative Prompt

BadDream,UnrealisticDream,ng_deepnegative_v1_75t,EasyNegativeV2,Asian-Less-Neg

^^I can't say I've tested these thoroughly... it just happens to be what I use by default.

Seems to work very well with LoRa's and Text Embeddings of all kinds.