A great web forum to get this awnser is www.techexams.net/forums/
There is many forum posts of people that is passed or is studying for the exams.
I got many video and audio suggestions to complete my study roadmap to CISSP from this forum.
I had some prior cloud experience before I begain. I started my studies with the (ISC)2 CCSP online training videos (Adam Gordon is a hoot!). Supplemented this with the BOK.
Was not able to take the exam right away for various reasons. When I returned to my studies, I supplemented the BOK with two texts:
1. CCSP Certified Cloud Security Professional All-in-One Exam Guide (McGraw-Hill) (Better organized)
2. CCSP (ISC)2 Certified Cloud Security Professional Official Study Guide (Sybex) (More in-depth info)
Passed on the first attempt.
Many years ago there was one class, one text written by the the late great Shon Harris. I read the book over the course of two weeks and reviewed my notes and self made flashcards. What helped more than anything else was (gasp!) I had a great deal of experience so much of what was on the test was more reflection of what I already knew rather than cramed into my head in some feverish over preparation for a fairly easy test. I took five breaks and completed the exam in little over two hours. Most of my fellow test takers were done well before myself so I felt as though I took too much time. Still, to this day I felt over prepared to sit for the exam.
For myself, I considered it, a huge bonus for someone who likes to read the entire test before answering the first question. Personally. I find it so much easier for me to formulate my answers when looking at the entire field of questions.
Completed the CISSP exam while we still had the privilidge of the paper exam. Though shorter in length took both the ISSAP and HCISPP electronically and completed both in about the same time or roughly 2 hours.