Besides Hacker News, I mainly discover new blogs via links from blogs I already read.
As for sharing my own blog, it's mainly here for me as well, or in open comments sections where that's encouraged.
So... I'd also love suggestions on other ways!
What's your blog?
As you're aware, HN users have an editable about section in their profile. eg:
https://news.ycombinator.com/user?id=bobbiechen announces https://bobbiechen.com/blog