For urgent, high-volume needs, the Google Indexing API is best for job postings...
https://zulu-wiki.win/index.php/How_Many_Internal_Links_Should_Point_to_a_New_Page_to_Help_Indexing%3F
For urgent, high-volume needs, the Google Indexing API is best for job postings or live streams. If you’re handling large link batches, third-party services provide solid throughput, often costing about $29 for 60 credits