More brushes that look like actual paint brush strokes, with different opacities, like in Procreate.

I also run into the issue of not having the right brush and the brushes in Illustrator  do not fit my needs. When I searched for a solution, all I found was brushes in Procreate that fit what I needed perfectly. It would save me a lot of time if the brushes were available in Illustrator so I don’t have to create my own each time I need them, and also that the brushes I do create aren’t exactly what I need.