Need Help/Advice/Tips to go to Champions League

Hi CoC community i am trying to reach Champions League i need your help on what troop composition i should use? btw my defense is maxed out in TH 9. but the walls are in level 8 Thank you so much for your help :)
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BK: 7
AQ: 5

Barbs: 6
Archer: 6
Giants: 6
Wizard: 5
Ballons: 6
WB: 5
Goblin: 4
Healer: 3
Pekka: 3
Dragon: 4
Minions: 5
Hog: 4
Golem: 4
Valk: 1
Witch: 1 ( Currently in the Research)
Lava Hound: 1
Lightning Spell: 6
Heal: 6
Rage: 6
Jump: 2
Freeze: 1