Topic clusters, content hubs, or whatever you want to call them, have been part of SEO strategies for some time now, but when don't they work? This guide by Siege Media outlines 4 ways people incorrectly use them, and some substitute frameworks to use instead.
Despite having to sign up with Traffic Think Tank to get access to the template, Nick Eubanks has created a pretty comprehensive walk through video of how to do cohort keyword research. This is a fresh perspective on how to do keyword research, so it is hopefully something you haven't seen before. Check it out and it may give you some new ideas to revamp your own research!