Ballons or Dragoons

Try a mix of drags and minions. Frankly accomplishes the same thing. Level 5 balloons are functional but they become beasts at level 6

I'd stick with barch (barbarians and archers) or BAM (barbarian archer minion) for farming.
Mass drag costs a ton of elixir, and someone with pretty high leveled air defenses could easily wipe out your dragons.
I'd get those balloons up first to level 5-6.

Loons after level 6 but untill then use ground armys or drags