I've been riding century routes by using my house as a hub with spokes out to other suburbs. Not the same as some of the rides I've done up in Wisconsin or out by Princeton, IL in terms of scenery nor hills but for now they are keeping me in reasonable cycling shape.
My favorite century in July out in Princeton was just cancelled. I've done it the past 5 years. At this point it appears unlikely that I will register for any other events in 2020 as that just seems to guarantee that they will be cancelled.