Hello! I'm a Moz and TechCrunch contributor, and PR and publicity campaigns (those are not the same thing) are a speciality of mine. If you'd like a free 101 resource, here is an introduction to publicity strategy and the overall method that people such as me use:

https://moz.com/blog/an-introduction-to-pr-strategy-for-seos

If you'd like more advanced advice, feel free to schedule a call! Yes, I can give you some advice on finding and reaching out to the right journalists and bloggers.