Hmm, what army would you use just for farm raids on a TH8.
What I usually do is take 100 barbs, 100 archers and go for bases with mines/collectors outside
Or
I take giants + healers, get them to take out all the defences and then come in with barbas and archers
It takes me a lot of time to finally get something upgrading at TH8, I feel like I'm not getting enough gold/elixir as I should. Any idea?