One thing I would recommend you is to write comments in the top blogs from your niche, most of thoses blogs allow you to link your website in your name.
The comments need to be good, so that the people that read the comment will join your website to know a little more about you 
I´m doing this in my personal blog and im getting 600-800 users per month and those visitors are really interested on my niche, proof of it is the low bounce rate they have 
Hope this helps
P.D: Despite you get a link, it doesn´t have to do anything with link building ( link will be nofollow most of the times ), it´s just a practice to gain visibility which is actually working 