Why do you need important blogs in your niche? Because you want backlinks,you want importance of your blog to grow. So, what can you do about it?
Today you going to start blog commenting,find blogs and add them to your spreadsheet. How do you find them? Use this for search in Google:
YOUR NICHE “NO COMMENTS POSTED YET”
inurl :YOUR NICHE intext:”powered by vbulletin”
Read the article on the blog and try to add comment with a value to blogger.If you just say Hi or spam ,your comment will be deleted.
You can also leave your link on forums,big platforms and some other places but always look for content relevant to your niche.