One of my favorites is Have to Drive (http://www.fanfiction.net/s/5291779/1/bHave_b_to_bDrive_b) by McStories on fanfiction.net. It's really well-written, and nice and long.
But have you checked ncisficfind? they have a ton of great recs, and it's really well-organized. If you posted this request there, you'd probably have a ton of replies in minutes. It's a great community.
no subject
But have you checked
good luck!