Because a lot of people don't seem to have started, here's a place for us to figure out what we're going to be doing.
I got paired with Austria. One of the suggestions was the Swabian War, and I would be pretty happy with that. Maybe Battle of Calven (Chalavaina)? I guess technically that was between the Habsburgs and the Grey League/Grischun, but since unified Switzerland wasn't fully a thing at the time, Grischun is going to be Swiss by my standards. Besides, Rumantsch is fun.
If you have another historical suggestion, I'd be down for that, but my only other thread with Switz isn't historical, so I'd like to go that route.