Here! A masterpost of all my current Paint Tool Sai brush settings that I’ve either collected, made, or tweaked. Each example has been scribbled on the same scale, 20px, sometimes with various pressures so you can see how they work. Also, multiple colors to see how they work on their own and how they blend. Even still, the result will vary because everyone draws differently!
Brushes not listed here that I use frequently that I didn’t post because you can make them by right clicking and just making a new brush: Default marker, default binary, default airbrush.