I tried something on the fourms where if I use my gems to boost my barracks and I'll find better bases and it worked. But I don't know if my army comp is good enough.
50Level 4 archers, 90 level 4 goblins, 6 giants, and 5 wallbreakers. I farm in the 1000-1100 range I usually look for anything close to or over 50K of each resource. Should I look for better? the best I got was 200K of each resource. (I'm a Town Hall 70 with 180 spots)
I have a th 7 and i farm in 1000 - 1100. I think you need more giants. I use 20 giants (to much?) a healer 30 goblins 5 WBs and a few archers. I usually go for 100k more each.
Go to gold when you want DE to bb king, but i stay under 1200 to protect my gold /elixir.
For farming I use 5 giants, 6 wall breakers(being that bases usually have 3 line walls to go through, use barbs, archers and a hint is use very little goblins. I say 20 max. Barbarian are goo for little mini tank(taking the hits while archers put in work). Just play round with these cheap units and Im sure you'll find the right number.