Every home in the U.S. is eligible to order 4 free at-home COVID-19 tests. The tests are completely free. Orders will usually ship in 7-12 days. My wfe and I purchased ours before they were free. Your health insurance company will pay you back for 8 at-home tests per month for each person on the plan. No-cost antigen and PCR COVID-19 tests are available to everyone in the U.S., including the uninsured, at more than 20,000 sites nationwide.
Here is the link https://www.covidtests.gov/