Lots of big companies were started during recessions [1]. This current crisis is unique in that certain markets are actually thriving, such as delivery services like Postmates, Doordash, Instacart, grocery, shopping like Walmart, Target, and Amazon [2], and remote working and entertainment services like Zoom and Netflix. You could see what services we need for future crises like these (pandemics, fires, earthquakes, floods, war) and build up a startup around that.

1. https://medium.com/swlh/13-massive-companies-that-started-du...

2. https://www.forbes.com/sites/johnkoetsier/2020/03/24/covid-1...