Find a base that has centralised loot (works on TH7's and lower)(also works on abandoned bases, but you don't need skills to use it on abandoned bases).
Drop a few goblins near the clan castle to lure out the clan castle troops.
If there are tier 1&2 (excluding balloons and including minions and hog riders) clan castle troops, drop a barbarian in a corner or an archer at an exposed building, once the clan castle troop are exposed, drop the rest of the barbarians and archers to take them out. If there are balloons, dragons or valkyries, drop a single barbarian or archer at a time to keep it/them busy while you continue the raid. If there are witches, lure them out and once the witches are exposed, send in the barbarians and archers to kill the witch first then kill the skeletons. If there are any other troops, just drop all your barbarians and archers.
Chose a side to attack from (the side that has a clear path to the storages) and drop a few goblins to distract the defences and drop 2-3 wall breakers to get through the first layer of wall.
Drop as much goblins as you need (no more than 60) to clear out outside resource buildings so the goblins will go straight for the storages later.
Drop some more goblins and the rest of the wall breakers and hopefully you can destroy the inner walls.
Drop the hog riders (you can use giants, but giants are really slow) to distract the defences and drop the goblins so they go straight for the storages and they should be able to take them out in seconds.
(No execution notes)
Thank you for reading this attack strategy and teach those people who hate goblins that goblins can be great.