GCP Platform overview: see the dedicate Google documentation. For example: Overview.
How to Create a Project in GCP¶
Reference: Creating and Managing Projects.
Open the Google Cloud Platform (GCP) console.
Click IAM & admin.
Click Manage resources.
On the Manage resources page, click Create Project.
Enter the Project Name.
Click Browse to choose the Location.
Click Create. The project gets created.
You can enable billing for the project. For more information on how to enable billing, refer to this topic in GBQ documentation.
BigQuery is automatically enabled in new projects. This helps you to access the APIs.
The Project you use in Alation should be billing-enabled.