Do link Indexers really help in getting Links indexed to the earliest?

I am not sure how do link indexer work, but do you think it would be helpful If i purchase link indexer for my backlinks. If there is any alternative, please suggest.

Check this thread: https://www.blackhatworld.com/seo/what-is-the-best-indexing-service-now.1388558/post-15051564

Here is free way also, you can try

Link indexers work in a very simple way... they feed your links to google.
How?
- youtube
- google news websites
- other frequently crawled sites
But it's not that straight forward as it requires a tweak or two.

Just go to the marketplace and as far as I know every single indexing service provides free trial there.
Try for free and see if it's for you.

PS: if your links are not indexed then you can't help you.