I have only seen one farming Guide and it is only an early guide for a starter. Later game such as world 27 which I am mainly playing is a great example of the time to start Barbarian village shaping. All over the world Barbarian cities (herein referred to as Barbs) are hitting 10K points so people if they are taking a new city unless a barb has less than 10K points they won't touch it. Barb shaping is where you destroy all the buildings that are unnecessary to resource production. Ie HQ barracks Stable Workshop Forge Market Wall Rallypoint basically anything except the 3 resource structures the farm and warehouse. The idea of this is to do a number of things 1 the city will get to a max of 16k points or so with most of these maxed and 2 people wont be as interested in low point cities.
Barbs grow randomly and defy the rules of possibility by ignoring warehouse limits and time constraints. By scouting a barb you can check your local cities for a possible farm you can make. In your scout you should aim for a city with roughly lvl 12-15 in each resource and everything else doesn't matter then assemble your army of ltroops with a fair amount of ballistas ( the more you send the faster they finish) then hit the city taking out the aforementioned unneeded buildings until they are all 1's or 0's. This will result in a low pointed city that is producing reasonable resources. People will overlook these cities when planning their conquests and you will be able to reap the benefits of all the resources
Hope the guide was helpful and made sense
~Nutter
