When pushing fresh content, manual GSC submissions are your baseline. For bulk...

https://sierra-wiki.win/index.php/How_Many_Internal_Links_Should_Point_to_a_New_Page_to_Help_Indexing%3F_(Stop_Guessing)

When pushing fresh content, manual GSC submissions are your baseline. For bulk link campaigns, Indexing API services—often priced around $29 for 60 credits—can trigger a crawl in under two minutes. However, don’t mistake delivery for indexing