How to make Topic clusters

[halamadrid7]

What tools do you use to make topic clusters? What does it mean? In my site I am just writing content that is low competitive and adding them to their respective categories. Currently, I have 4 categories on my site. There is no pillar page/content on my site. All the articles related to the category only.

 

[DerangedWolf]

I use Writerzen

 

[halamadrid7]

I use Writerzen

What is so special about Writerzen? I don't have any pillar pages so, will making topic clusters effective for my site in SEO?