Miko from Dandadan
Keep in mind that settings may vary slightly between different versions. See below for more details.
When I tested this with different checkpoints and LoRAs, it seemed to work quite well.
Illustrious:
A LoRA weight of 0.9 works great, though you can adjust the strength as you prefer.
Prompts I usually used:
miko-dan, brown hair, short hair, single hair bun, brown eyes, grey earrings, white collared shirt, red bowtie, rolled-up sleeves, purple pleated skirt,