Book PR for new Science Fiction novel

I am a self-published author with a novel that is doing brilliantly well. So well, in fact, that another 2000 copies will roll off the printing press on 31st January, ready for launch as a second edition on 3rd February.

My challenge is getting coverage in the press and media, to help get word out to a wider audience.

I need help with getting a press release out to relevant targets, including newspapers, radio and magazines, and making sure it stands out and gets some traction...

I've attached the book cover.