Big categories have the most variety, and usually the most commutable trips. The 88 in ATL is largest, for now, and will remain so for a while. 7er would be great, but only once you hold a line...and that's going to take a while.

I've looked at NYC some (I have a bad commute so I'm always looking for another angle to make my life better), and all domestic fleets had a large amount of early report times and late checkout times. Probably too early for a DC commute, but it's still worth looking at.

You will hear an endless stream of "Just don't commute" from folks. They're right, but they also don't know your situation. Do what you need to do.