Here is a pretty comprehensive list of all of the shows and events for the rest of 2018 found via Model Train Shows Calendar 2018
One event I didn’t see that’s local to me is the 51st Annual Cincinnati Model Train and Trade Show. It’s on October 13-14, 11am-5pm both days, held at the Lakota West High School in West Chester, OH. Admission is $7.00, kids under 12 and Scouts in uniform are free.