I've arranged for a tour of Dovetail Brewery in Ravenswood. They do mostly lagers and even ferment with a coolship.
The cost is $15/person and that includes three 10 oz beers.
If your interested, please reply to the forum thread here: https://www.chaosbrewclub.net/forum/events-committee/dovetail-brewery-tour-august-20th
They can accomodate 30 people on the tour, so there's plenty of room!!