Need link building service for my wordpress survey site

Hey, I have checked out many of the threads in the Link Building subforum. I need a service which will provide me an ability to post a couple more keywords (niches). 3-5/month is not enough for me, because my blog is publishing new niche everyday. It mustn't be the very cheap service. If I will earn more, I can invest some more funds. Any recommendations?

Try out Some Content Marketing Service. Bcz more than link building you'll get much better results from this strategy. Cheers

Can you link me some of these?