September 11th each year is both Patriot Day and a National Day of Service and Rememberance.
According to NationalService.gov:
On this day Americans across the country are called to volunteer in their local communities in tribute to the individuals lost and injured in the attacks, first responders, and the many who have risen in service to defend freedom.
We encourage all to seek out ways to lift and serve others in your local area. Consider using JustServe.org as a resource to find opportunities, including many ideas that are safe and appropriate in a COVID world!