For high-authority sites or programmatic content, stick to the Google Indexing...

https://www.kilobookmarks.win/choose-your-indexing-tool-based-on-your-specific-volume-and-technical-stack

For high-authority sites or programmatic content, stick to the Google Indexing API; it’s the cleanest way to signal updates. For mass link tiers or orphaned pages, third-party services are common, often costing around $29 for 60 credits