Design a direct connection from your enterprise network to Google for Google Workspace access (existing Shared VPC with Compute in us-west1).

Direct Peering is the correct choice for connecting to Google Workspace (Google's SaaS offerings) directly from your enterprise network. It allows for direct, high-throughput, low-latency access to Google's public services, including Google Workspace, by establishing a BGP session with Google at a common peering location. Dedicated Interconnect is used for connecting to your Google Cloud VPC network, not directly to Google Workspace. HA VPN provides encrypted connectivity over the public internet, which is not a direct physical connection and may have higher latency. Carrier Peering is used when connecting through a third-party carrier, which adds an intermediary and is not a direct connection to Google.