Hello friends,

What is the best tool for link building automatically?

I request you to avoid automated link building tool, as it penalize your website!!

Yes. Automatic link building automatically leads to google penalty.

Link building, simply put, is the process of getting other websites to link back to your website. ... Building links is one of the many tactics used in search engine optimization (SEO) because links are a signal to Google that your site is a quality resource worthy of citation.
NinjaOutreach.
Link Prospector.
BuzzSumo.
cognitiveSEO.
Pitchbox.
Majestic SEO.
Hunter.io.
Monitor Backlinks