Best Way To Boost Tier 1Q

Hi,

I'm looking for the best way to boost my tier 1 with quality tier 2. Here are some option:

1. HQ blog comment
2. Social media

Any other suggestion?

Also can someone suggest me a good/quality seller from the BST for quality blog comment and social media to boost my tier 1?

Thanks

u can check a link building seller on marketplace..
and see... what kind of link that used for tier 2 or even tier 3.