There are 2 repositories under aws-powershell topic.
AWS PowerShell scripts for VPC, ELB, and Route 53 (Networking deep dive courses)
aws cli scripts that I use for testing and automation
AWS PowerShell scripts for EC2, VPC, ELB, Route 53 and S3. Useful powershell snippets for AWS.
Repository of helpful scripts for administration of AWS resources using the AWS Tools for PowerShell
A helper library for PowerShell to support AWS sign-ins with ADFS and MFA enabled