How to attack defending balloons?

I was attacking an enemy base and in their Clan Castle they had Balloons. My barbarians got their ass kicked. How can you attack the balloons in battle?

Treat balloons like any melee troops with a splash attack, except they fly. So, lure them into a corner and then hit them with spread out archers, minions, or wizards (most common units that can hit air).

• Archers are cheap but will take them down slowly, which gives them a chance to fly over a group and take them out on death.
• Minions I believe will not die from the bombs dropped upon death, so you can take out an entire castle full of balloons with a couple if you can spare the time.
• Wizards will take them all down at once if they're clumped together and minimize how much damage they do on death.

Any airborn troops (dragons or minions) or use archers and wizards to shot them down. The positive of uses dragons or minions is balloons cannot damage them.