I agree with @altafino and @alexgolub. You need to be very careful with this. You don't want to be seen leveraging the pandemic for personal gain.

I've seen some companies provide their services for free. For example tools that help teams work remotely. That might still be an acceptable strategy. You do something good, don't (immediately) gain from it, but you do build up a good reputation and those free customers might end up becoming loyal paying customers in the future.