backlink help

Hi i am new to blogging and i need help from you guys regarding creating a good backlink to my event blog and how to choose appropriate category to my nitche. For eg if my blog is based on new year sms so what's my category should be

Hey guys, Im new here, and I just got done building my website for a DJ Business that DJ's weddings, parties, and so on. I have managed to get my website on the first page of google by myself with mostly on site SEO. I am using a wordpress template and have all in one SEO pack installed...