If you do not want to write fresh content yourself or you do not have time, I suggest you outsource the job. Make sure whom ever you outsource to is writing them from scratch and not usinga spinner themselves. My favourite are seoarticlewritingpros.com but you can also outsorce companies like www.contentproz.net or www.articlewritingservices.org plus loads of others too.
SpinReWriter is a handy tool which helps you in spinning your original content with randomly created phrases and words with substitutes. In addition to it, these tools have many advanced features and functions which smartly turns content error-free. Its powerful performance uses algorithms to entirely modify the articles into a copy that has been never posted before.