It’s hard to name good sources when we’re talking in generalities. But whatever topic your interested in, there are likely many experts on the subject that hav

It’s hard to name good sources when we’re talking in generalities. But whatever topic your interested in, there are likely many experts on the subject that have published books or other long form content. That’s a great starting point, then I think you need to figure out what works for you through experience and trial and error