Teach me how to blast 200k backlink

I am NOT here to become another seller, need to do this as part of my job.

I am a whitehat SEO intermediate expert but sometime we are forced to rely on blackhat. I am doing this as someone has got a negative story about my company on SERP1.

I hope someone can "teach me" how to blast +200k blog comments backlinks.

Cheers,

M