Another good one, at least the podcast version, is Wealth of Wisdom: The Top 50 Questions Wealthy Families Ask
The podcast is 50 interviews with the chapter authors on lots of topics. I hope you find some useful.
More Than Money is an old newsletter that has lots of interesting articles on the topic of "I've got it, now what?" It's one of the few things I've read that aren't "Gee I wish I had your problems"
Best of luck, there are no simple answers.