Hillsboro, OR (Stark’s Twin Oaks 7S3) and The Flying School at Loveland, CO for sure have aircraft flying right now. As others have mentioned, there are a couple more coming online soon with RV-12iS airplanes. EAA’s sport pilot academy has three 12iS training aircraft but not yet active due to COVID delays.
Orders for new construction airplanes are currently booked out into Q4 2022 delivery dates - we’re pretty busy and the orders keep coming in!