Indexing tools aren't magic, so match them to your scale. For high-volume link...

https://aged-wiki.win/index.php/When_Should_I_Use_Google_Search_Console_First_Instead_of_Paying_for_an_Indexer%3F

Indexing tools aren't magic, so match them to your scale. For high-volume link building, look for API-based services that push requests in under two minutes