Looking for some titles in the change management field, here are some suggestions:

 Achieving HR Excellence through Six Sigma

Field Guide to Achieving HR Excellence through Six Sigma

The Excellent Education System: Using Six Sigma to Transform Schools

Coming Soon:

Reality and Perception and Your Company’s Workplace Culture: Creating the New Normal for Problem Solving

and Change Management (2019)

Employee Empowerment: The Prime Component of Sustainable Change Management (2019)

Achieving HR Excellence through Six Sigma 2nd edition (2020)

Field Guide to The Excellent Education System (2020)

The TLS Continuum Handbook (2021)

Best investment I have ever made

Look at Next Best Idea Club developed by Dan Pink and Malcolm Gladwell. Four times a year they send you a box with the latest and best two new books. Cost is $250.00 per year.