IntroNiche can be a good place to market your blog. And more so, to have credible marketing.

All you need is a pretty good idea of who you are trying to reach through your blog.

In marketing slang, this would be your niche.

Is your blog for female tech lovers in the USA?

Is your blog for garden users in the Midwest?

Is your blog for young travellers in Europe?

You can define it in our categories. Indicate that you run a blog.

Play around with the variables if you want. If you run a blog aimed at the US market, maybe define you're looking for blogs aimed at the UK market.

You should now be able to find other social media who cover the same or similar markets with their blogs.

Contact them directly to see if they want to do a blogswap, a linkswap (linkbuilding!) or anyting for mutual blog advertising. If so, do the deal. If not, change some variables and try to find some other bloggers that you have something in commom with. 

Good luck with your blog marketing!