There isn't one right framework for digital transormation! Think about it, the question could be "our digital transformation has fallen behind. How do we fix it?" or, it could be "x company in y industry is looking to embark on a digital transformation. How do we set it up" or "As part of their digital transformation, x company in y industry is looking to employ data analytics/AI. What do we prioritize and how?" etc .etc .
All of these have different frameworks/approaches!
Now, my strong suggestion is to 1) Learn how to framework 2) Learn/read the main digital/IT topics on Dloitte Digital, BCG Platinion, McK Digital etc. websites 3) Tie both #1 and #2 together in digital transformation cases...ideally with the help of a coach.
Now, I know it's hard to get resources on this - there isn't much! That's why I created a number of cases (some public, some private) and a lot of preparation material around this. Feel free to reach out for support (I'm helped countless candidate in this area), and, regardless, have a look at my public content here: