AdSense Approval Guidance Needed

My site attracts steady, genuine traffic and is packed with articles that readers spend time on, yet Google has labelled it “Low Value Content.” I want to be certain the next AdSense application succeeds, so I’m looking for someone who has already helped other sites move from rejection to approval... (Budget: $30 - $250 USD, Jobs: Content Audit, Content Development, Content Strategy, Content Writing, Internet Marketing, Link Building, Marketing, SEO)