WordPress website updates with SEO-optimized landing pages

I own a busy day spa and Registered Massage Therapy clinic and I’m sitting on a collection of keyword-rich domains that currently do nothing more than redirect traffic. I want each of those domains to... (Budget: $10 - $30 USD, Jobs: Content Writing, Conversion Rate Optimization, HTML, Keyword Research, Landing Pages, PHP, SEO, Web Design, Website Design, WordPress)