Guest posts are great way to increase blog readers and to get one way backlinks, the ultimate factor to decide the search engine rankings.
Here is one popular blog that accepts blog posts from guests like you and I.
Go to bloggodown.com/write-for-us
Read the terms for submitting guest posts
If you agree to the terms, submit your blog post.
Blog Godown has Gogle page rank 3 and 2000 people are reading the blog's RSS feed. Definitely worth submitting guest posts.