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

https://www.ranktracker.com/blog/best-website-indexing-tools-for-seo/

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