To pretend that there's one answer to this would be a little careless on our part.
Some of you will know that folks like Brian Dean (from Backlinko) managed to get to one million uniques with only a few dozen, very thorough posts. Whereas, the strategy of Huffington Post (and the whole reason they're so open to guest posting) is to publish as much as humanly possible.
Apparently Huff Post publishes more than an article per minute on average.
From all the research we've done and all the experience we have, it would seem the most important thing is to have some schedule or plan to demonstrate consistency to Google.
If you're a team of one, then aiming to publish one new, quality article a week might be fine. Then, when you're comfortable with that, you might see if you can aim for two, or simply aim to publish one post and update another.
If you do have a team (or you have the time/you're efficient), then you might want to aim for around three posts per week.
The folks at Hubspot suggest that, for organic growth, you really want to post as much as possible, though not to the point of blogger burnout (which is a real thing, by the way).
At This Week in Blogging, our feeling is that you should post as much as you can while maintaining quality (and sanity). But to dive into this one more, we turned to the community to see where you stand.