What should I Write?
Keep in mind that you don't have to write all that great content yourself for your WordPress Blog. Inviting guest bloggers to write a blog or two is a great way to add interesting content, share another point of view, and keep your blog fresh so that visitors will want to come back.
Of course the guest bloggers blog post should be compatible with your blog while adding a new perspective or giving additional information or tips. Guest bloggers can also increase your visitors as they will have their own following.
The easiest way to find a guest writer is on Fiverr. Keep in mind though that the $5 per post price comes with the distinct possibility that the person is new to writing or may not be well versed in your topic. As you make friends in your industry you can ask people you meet to guest post on your site.