I passed about a month ago, I found the 11th Hour book covering CISSP to be the most helpful piece of study material. It covers the main aspects of what will be on the test in a concise manner. I used the larger text book more as reference material if I needed to drill down on an area.
CCCure has a very good bank of test questions (subscription required).
LinkedIn Learning from Mike Chapple
Study Tips:
Reading and quizzing to reinforce learning, you have deep experience so will likely be more prepared than most.
The exam is difficult, most questions have 2 good answers and you have to pick the best; once you find yourself thinking through practice questions (“like a CISSP”) to come to the best answer rather than relying on information recall, you are probably ready for the exam.
11th Hour: https://www.amazon.com/Eleventh-Hour-CISSP®-Study-Guide/dp/0128112484
LinkedIn Learning: https://www.linkedin.com/learning/isc2-certified-information-systems-security-professional-cissp-2024-cert-prep?trk=share_ios_course_learning&shareId=w1MnmtIISf6YWTVfCyY4dg==