Apart from farming lumber, I don't really know what profile could accomplish this. I recommend you download the addon HandyNotes and HandyNotes_DraenorTreasures. This will put all the chests that contain garrison resources on your map, you can go pick them up manually. Likewise, you could also keep a consistent flow of work orders on your trading post so that you gain 30 garrison resources per 3 hours (or 4 I believe) for literally doing nothing. Best of luck.
there are profiles to kill rares and loot treaures which will give you a good amount of resources, check the profile sections.
