I just spent way too long finding a place to get a cover test. The test results were dominated by private offerings and United Airlines soon offering Covid tests to people flying to Hawaii. Neither was what I was looking for.
So without further ado here is the link to the San Francisco Government page, where I found a good list of 30+ places testing for Covid-19, including free Covid tests for uninsured people as well as private options.
If like me you just wanted to find out if Pier 30 is still operating and testing then yes, Pier 30 still tests for Coronavirus. Voila. I hope I just saved you the tedious jumping around forums and articles about United Airlines that I went through.
If you want to thank me for my time and for sharing the solution (rather than just fighting my own battle and leaving you to fight yours) then please just let me know which testing center you will go to and if you have time then let me know in comments how it went. I would really appreciate that as I am test phobic and a hearing your experience might be helpful.