You can use social media websites, submitting your content to relative groups and pages.

To increase the traffic on website, i think social media sites is the best option to get more and more traffic on the website.

There are other ways of getting traffic apart from backlinks, so dont just focus only on it. you can get traffic from social networks platforms. but if you wish to get SEO services to help you out, you can check my signature site below,... i have personally used the site and it surely works.

Would definitely use Facebook and twitter. Probably less pinterest and instagram given your niche. You could also try out google adwords but I would be very specific to focus on relevant traffic only.

make viral content

pick a popular keyword,
Share to social media,