For finding blogs I either pick them up organically here or on lobste.rs.

The more niche your blog is, the more chances you'll have at sharing it on highly specialized subreddits - otherwise you can always drop links to your blog in HN conversation threads if it feels relevant. That's how I developed a bit of readership on mine.

And in the interest of sharing blogs, a classic is "Old New Thing" written by Raymond Chen. It's highly technical around Microsoft/Windows but I enjoy how incredibly thorough it is.

https://devblogs.microsoft.com/oldnewthing