Writing, even if no one reads what you write, is super valuable, and fun! Writing something down is to structure your own thoughts so that you learn more about the topic and about yourself. In my experience, publishing a piece of your writing just ensures that you double check your thinking, but most of the benefit is learning more about what you intend to write about.
So here's my advice: just write posts on what you think is interesting on your personal blog. Don't install analytics, just write it down, publish it, and put it on your LinkedIn. Someone will see it someday and will like it.