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

https://www.bookmarkingqueen.win/choosing-the-right-indexing-tool-depends-on-your-site-s-volume-for-link

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