The following texts relate to overall course design and development principles - how you think about your teaching in myriad ways.
Brown, P.C.; Roediger III, H.L.; McDaniel, M.A. (2014). Make It Stick : The Science of Successful Learning. Belknap Press. (ebook through Steely Library). This book is a great foundational text that focuses on the ways that people learn. Aimed toward the learner, it nevertheless provides practical guidelines and tips you can implement - and are likely already doing.
Conceição, S. C. O. & Howles, L. (2021). Designing the Online Learning Experience : Evidence-Based Principles and Strategies. Routledge. (ebook through Steely Library).
Hanstedt, P. (2018). Creating Wicked Students : Designing Courses for a Complex World. Routledge. (ebook link through Steely Library).