I use this brush for sketching, doodling and line art. It also works well for rendering. You can adjust the stabilization settings to suit your preferences.
Recommended size: 4–5 px for sketching and line art.
Note: This brush works best with pen pressure only.
!! I'm don't know how to upload brush packs at the moment, so I'll share the brush I mainly use for shading in a separate post. !!
https://assets.clip-studio.com/en-us/detail?id=2145499