E-Commerce Directory Link Building

My e-commerce store needs a focused off-page push to lift organic rankings and authority. I want you to handle only one thing for now—link building via directory submissions. No on-page tweaks, no social media campaigns, just solid, white-hat directory work... (Budget: $250 - $750 USD, Jobs: Digital Marketing, Internet Marketing, Keyword Research, Link Building, Market Research, Marketing, Moz, SEO)