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.
>Counterpoint: writing blog posts so that they are read by someone else completely defeats the point of writing for 99% of people.
I think it's totally fine for authors to write for themselves, but I think the number of authors who have that goal is far lower than 99%. Maybe 5-10%?
For almost every author I've spoken to, they get satisfaction from people reading what they write. It doesn't have to be millions of people, but I don't think most people find it satisfying to spend hours writing an article for it to only reach a single-digit number of readers.
So, I don't think it should be every blogger's goal to find a wide audience, but if it is, I think the recommendations in OP will be helpful towards that goal.