recommend

KSampler:

euler a / dpm family

Schedule:

sgm uniform / karras etc.

Sampling Steps:

20 - 30 up

CFG scale:

3 - 7

Clip skip:

2

Upscaler:

R-ESRGAN_4x+ Anime6B, 4x_NMKD-Siax_200k, 4x-AnimeSharp, etc.

the rest is up to you. those are just the settings I often use