Kagali from That Time I Got Reincarnated as a Slime / Tensei shitara Slime Datta Ken
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.
Pony:
A LoRA weight of 0.8 works great, though you can adjust the strength as you prefer.
Prompts I usually used:
blonde hair, hair up, braids, pointy ears, elf ears, hair over one eye, blue eyes, white collared shirt, black suit, suit jacket, suit pants