Georgia U.S. House District 6
The 6th District is historically Republican, and Price won this seat by 23 points last year. However, Hillary lost there by only 1.5 points (compared to Romney's 23-point win over Obama in 2012), suggesting an opportunity for Democrats. Jon Ossoff is the most viable Democratic candidate, with endorsements from John Lewis and Hank Johnson.
Jon Ossoff for Congress: https://electjon.com