How to attract blogs to exchange Guest posts?
You can ask them to post guest posts in exchange for links to their websites or posts. If you have more blog about how to attract blogs to exchange Guest posts news, then people will want to see it as a guest blogger through your blog.
If your traffic and visibility are low, you can still reach them through social media. Post your visitor blog opportunities via Twitter and Facebook. I believe that you will end up with a lot of bloggers leaving messages.