Bagwell lights are probably the most famous in Springfield! Someone posted an interactive Christmas lights map not too long ago also.

https://www.google.com/maps/d/viewer?mid=1h7JSpKKMyqpGO3ynAf7ehxg5lOOhvSw&ll=37.193755937605886%2C-93.26274573753214&z=13

I followed one of these a few years ago and was a little confused and disappointed, as in a lot of them were just basic Xmas lights on a house or none at all. But this was around 2018 and I imagine the recently updated is probably better.