How to Paint Notes taken after discussing the video done by Tim Gagnon above:
A link for more details on various brushes beyond the flat/round that I give you and what they each do. This is very user friendly.
https://www.art-is-fun.com/artist-paint-brushes#:~:text=Good%20for%3A%20bold%20strokes%2C%20washes,at%20tip%2C%20with%20shortish%20hairs.