(some of this is linked in the previous “summaries of research” post)

https://fivethirtyeight.com/features/why-its-so-freaking-hard-to-make-a-good-covid-19-model/
Testing tracking: https://covidtracking.com/data/
Economic tradeoffs: https://fivethirtyeight.com/features/what-should-the-government-spend-to-save-a-life/

https://www.nytimes.com/interactive/2020/03/26/us/coronavirus-testing-states.html