I get people asking to place articles on my blog for money all the time. I always ignore because I figure they're automated messages. But what if I said "yes"? What would it take for a public blog to support a modest full-time income?
There are cottage industries here, right? Mommy blogs, cooking, fandoms. I don’t know them well, but afaik they do exist. https://stratechery.com/ too, but probably more of an outlier. Not exactly “modest” in reach/success.