What do you know about The Conversation? At first blush it seems like a great space similar to Phys.org but less specialized.

From https://theconversation.com/us/who-we-are:

We publish trustworthy and informative articles written by academic experts for the general public and edited by our team of journalists.

On this website (and through distribution of our articles to thousands of news outlets worldwide), you’ll find explanatory journalism on the events, discoveries and issues that matter today. Our articles share researchers’ expertise in policy, science, health, economics, education, history, ethics and most every subject studied in colleges and universities. Some articles offer practical advice grounded in research, while others simply provide authoritative answers to questions that sparked our curiosity.

The Conversation U.S. is part of a global group of news organizations founded in Australia in 2011 by Andrew Jaspan, a former newspaper editor who wanted to encourage academics to engage with the public, and Jack Rejtman. Jaspan led the U.S. launch in October 2014. Our main newsroom is in Boston, with editors working remotely in cities across the country.

There are also editions in Africa, Australia, Canada, France, Indonesia, New Zealand, Spain and the United Kingdom.