April 15-17 in Jefferson, WI, the National All-Satin show is going to be held, and it's a chance for you to see the absolute best of that breed in one place all in one weekend.
Also check the ARBA site and click on the "shows" link in the left column. Wisconsin has some very active clubs in just about any breed you may want to choose, not to mention the bookoos of all-breed clubs which regularly put on shows throughout the year.
There is an open show with quite a few breed sanctions in Elkhorn (South of Milwaukee...on a line between Milwaukee and Janesville) February sometime....2nd maybe? geez. can't remember. I'll go look it up.
Ah. February 13th. Both youth and open. Sorry, I don't have a catalogue available
There are usually shows in Jefferson every few months. (very active group, and a very good show site.) Also quite a few over in janesville, and west in Dodgeville.