Homepage Traffic SEO Optimization

My main priority is to drive more visitors to the homepage, and I want a fresh set of expert eyes on how to get there. Up to now I have relied mainly on keyword optimisation, but it is clear that a more rounded strategy is needed if I am going to push organic numbers higher... (Budget: €8 - €30 EUR, Jobs: Content Audit, Content Strategy, Google Analytics, Internet Marketing, Keyword Research, Link Building, Marketing, SEO, SEO Auditing, SEO Writing)