Clackamas County, Oregon and Clatsop County, Oregon would likely flip with a plurality in the scenario of a Drazan victory.
Clackamas County is basically Titanium Tilt Drazan at this point - it has voted Republican in every gubernatorial election since 2006. If Kotek wins Clackamas it's over for Drazan. Clatsop is the most probable flip from 2018 besides possibly Deschutes, which has the potential to go the other way. If you're looking for a sleeper pick, Lincoln County flipping would be surprising, but possible if Drazan pulls out the win by a decent margin.
Personally, I'm interested in the Columbia County results. It's Betsy Johnson's home turf, and it'd be interesting to see if she could win it or pull a significantly higher share of the vote than statewide.