According to my research, I would suggest you go for the online GCP Training offered by Intellipaat. They are the best among those who provide online GCP training. You can get the industry-acceptable certificate from Intellipaat which will further help you get a good job in the future and, moreover, this course is being taught by experienced trainers. Hence, ultimately, you will get great knowledge of GCP and be a high-end professional! You can learn more on GCP from here: GCP Interview Questions and Answers.
Here is a GCP video tutorial that you can watch to learn GCP in a much better way.