A number of sites have offered wonderful suggestions. Along with these articles that may get you thinking, check with local sources, consider your own passions and abilities, and know that while none of us can do it all, each of working together have something to bring to these days.
https://www.washingtonpost.com/nation/2020/03/21/how-you-can-help-during-coronavirus/?arc404=true
How you can help during the coronavirus outbreak: several nonprofit organizations could use your time and money to make sure vulnerable populations are cared for during the pandemic
https://www.pbs.org/newshour/health/how-to-help-others-in-the-covid-19-crisis
How to help others in the COVID-19 crisis. As schools close and workers across the country are sent home due to the spread of the novel coronavirus, or COVID-19, outbreak, many of the most vulnerable populations in the United States face stressors that extend beyond the immediate health concerns spurred by the global pandemic.
https://www.vox.com/2020/3/21/21187530/coronavirus-covid-19-donations-how-to-help-rent-assistance-food-banks
From fighting xenophobia to rent assistance, these groups are offering support to vulnerable groups — and have advice for how you can help.