An interesting how-to​ about ​Content Marketing:

Get a walkthrough on how to use Reddit to do keyword research as well as strategies for coming up with high-quality content ideas. Topics covered include how to find your people on Reddit, how to spot potential content ideas, looking for patterns and trends, testing content ideas and asking for feedback, finding and building rapport and more!.

If you are interested in Content Marketing, have a look at the article "How to boost your content from 0 to 100 within 1 day." here in the AX Magazine. The whole article from the Semrush​ Blog you can find here.