Use AWS Control Tower to set up an organization in AWS Organizations. Use AWS Control Tower Account Factory for Terraform (AFT) to provision new AWS accounts.

Create an organization in AWS Organizations. Use the AWS CLI CreateAccount API action to provision new AWS accounts. Organize the business units with organizational units (OUs).

Create an AWS Lambda function that uses the AWS Organizations API to create new accounts. Invoke the Lambda function from an AWS CloudFormation template in AWS Service Catalog.

Create an organization in AWS Organizations. Use AWS Step Functions to orchestrate the account creation process. Send account creation requests to an Amazon API Gateway API endpoint to invoke an AWS Lambda function that creates new accounts.