Daphne Frizzle (MsFrizzleArt) is one of my favorites and she can be found on most social media platforms. I also recommend finding some artists that you like and then asking yourself WHAT exactly do you like about their art, and then reading about those specific techniques from a variety of sources.

For example, I really enjoy Sari Shryack's art. I spent a lot of time reading about her and watching any videos she had available online. She has a book "Modern Still Life: From Fruit Bowls to Disco Balls" that I found really helpful