Editorial Links – Advice Needed

I am a little frustrated with my SEO results at the moment.

My campaigns must have some holes in them that need plugging.

One of these things i need to fix is the lack of editorial/guest posts. I need some real authority links i think.

Can you guys please point me in the direction of sellers who are legit and provide class links.

With the price of these things i really don't want to be buying duds.