What should I use in Anchor Text for Backlinks

Which is the best way to have a Backlink?
Should I make the Keyword as an Anchor text for a Backlinks, or should I make the website or the brand name?

The name of the company is (31west) they are the call center service in the US.

So should the Anchor Text for the Backlinks.!

Keyword:- [call center services] linked to the website or page
or
Brand name:- [(31west)] linked to the Page
or
website:- [(31west.com)] linked to the home page

submitted by /u/David_Miller_DM
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from Search Engine Optimization: The Latest SEO News https://www.reddit.com/r/SEO/comments/a9ndhe/what_should_i_use_in_anchor_text_for_backlinks/>