I'm going to focus more on this game than the other game. Broker is obvious scum though.
So, I have a bit of an idea here. I posit that we approach this game as a Kingmaker/Majority Lynch hybrid. Basically, we all nominate a player or a couple players after a few hours in the day, those we have a good feel for being plausibly Town. They pick the lynch, and we stack on as if it requires majority. That way, everyone gets to be a viable lynch target, and only a handful of people can influence the lynch to change its course, which should prevent last minute wagons flipping.
Thoughts? Consider this an open question to the room.