I also maintain a human-curated directory (and search engine) of personal blogs at https://minifeed.net

You can submit a blog here: https://minifeed.net/suggest

Criteria is pretty simple:

- Must be written by a human.

- Must be in English (for now).

- Must have a valid RSS feed.

- Must not be purely a "micro-blog", i.e. must have some content other than tweet-sized status updates or links.