Top-Domain Backlinks Builder

I need 150 fresh backlinks created by hand every month for an already established site that competes in a tough niche. Every link must come from a high-authority domain; spammy networks, automated blasts, or low-quality directories are strictly out of scope... (Budget: $30 - $250 USD, Jobs: Content Marketing, Digital Marketing, Internet Marketing, Link Building, SEO, Social Media Marketing, Web Development)