This is an article by Newsweek that goes into various ways that anybody can help the homeless during the coronavirus pandemic. They talk about everything from preventative measures to more direct ways of action such as donations. They also offer some eye-opening statistics regarding homelessness that go to show how important your help really is. This is a great place to start if you are interested in learning how you can help.
https://www.newsweek.com/how-you-can-help-homeless-coronavirus-pandemic-charity-donate-1492709