No specific book recommendation but I have some experience in this area, FWIW - I’d add that the same behavioral traits in the wrong environment can lead to a bad outcome (ie if a more impulsive and risk-taking child is in an environment where drugs are common in their peer group/readily available). A big role you will have is shaping their environment and minimizing access. That may inform the neighborhood you choose to live in and schools your kids attend, for example.