Interesting topics to write about

I have a website where we write a lot of articles for Kubernetes, we want to be as relevant as possible writing about Kubernetes. We recently have written some articles about some very general topics.

We are now looking to see what are some deeper topics to write and do research about Kubernetes that is interesting to users?

For reference, the site is www.konfitech.com and we have our articles under Insights - Konfitech if you would like to see what we already have covered