adobe illustrator

shape builder

shaper

width

blob brush

https://theblog.adobe.com/speed-vector-drawings-illustrator/

https://dribbble.com/stories/2020/01/13/adobe-illustrator-tips-faster-workflow?utm_campaign=2020-01-28&utm_medium=email&utm_source=courtside-20200128

https://www.creativebloq.com/digital-art/illustrator-tutorials-1232697

https://www.linkedin.com/learning/illustrator-2020-one-on-one-fundamentals/welcome-to-one-on-one

https://www.linkedin.com/learning/illustrator-2020-essential-training/welcome-to-the-essentials-of-illustrator-2020