egghead.io has some good stuff, like this - https://egghead.io/courses/modern-redux-with-redux-toolkit-r.... Not super current but does a great job of going over concepts including in depth jest testing. Dan Abramov is a major contributor to egghead.

I would not recommend using expo. It's a huge stack of dependencies that will create conflicts when upgrading or using other packages (already problematic with pure RN). Maybe it's better now, but when I started with RN 4 years ago the Android issues were constant. Just use RN ejected, and you can still bring in expo packages as needed.