If you're writing great content, submit it on Hacker News.

Apart from that you can drive traffic from your blog's social media pages.

You can also publish a story on LinkedIn and link to your blog post. Use (don't spam) LinkedIn and Facebook groups as well.

Have a look at some niche social networks. An example: Growthhackers.com for content related to marketing, user acquisition, engagement, etc.

Write guest posts on other authority sites and put a link in your bio.