For high-volume sites, the Google Indexing API is the gold standard for rapid...

https://www.bookmark-url.win/when-you-re-fighting-indexation-choose-your-weapon-wisely-for-new

For high-volume sites, the Google Indexing API is the gold standard for rapid updates. For smaller link campaigns, third-party services like IndexInject—which offers plans around $29 for 60 credits—can help get your backlinks noticed within two minutes