That is a truly good, and challenging question. I mentioned it before, but Easter 2020 comes to mind. It's not exactly the same by any means, but it did feature that mass of rain moving northwards all the way through the afternoon, while line-embedded and discrete, mixed-mode supercells produced strong tornadoes to the SW and propagated NE, continuing to produce EF-2+ tornadoes well into the night all the way into GA and TN. To me that seems like a reasonable match to the convective evolution featured on the 00Z HRRR.