Sash Lead (Garchomp) @ Focus Sash  
Ability: Rough Skin  
Level: 50  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Earthquake  
- Rock Tomb  
- Stealth Rock  
- Roar  / Toxic
Standard Sash Lead Chomp not much to say, generally roar but can run toxic over roar

Scarf Chomper (Garchomp) @ Choice Scarf  
Ability: Rough Skin  
Level: 50  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Outrage  
- Earthquake  
- Rock Slide / Stone Edge 
- Fire Fang  

Yache Chomp Lead (Garchomp) @ Yache Berry  
Ability: Rough Skin  
Level: 50  
EVs: 60 HP / 116 Atk / 4 Def / 76 SpD / 252 Spe  
Jolly Nature  
- Rock Tomb  
- Stealth Rock  
- Earthquake  
- Roar  / Toxic
Meant to live greninja ice beam into three water shuriken hits (protean sash lead)

Alternative Yache Spread (Garchomp) @ Yache Berry  
Ability: Rough Skin  
Level: 50  
EVs: 92 HP / 4 Atk / 4 Def / 156 SpD / 252 Spe  
Jolly Nature  
- Earthquake  
- Rock Tomb  
- Roar / Toxic
- Stealth Rock  
Similar to above but sacrificing more power to live choice scarf lele's moonblast 82% of the time

Offensive Chomp (Garchomp) @ Lum Berry 
Ability: Rough Skin  
Level: 50  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Outrage  
- Earthquake  
- Rock Tomb / Substitute 
Can run Lum or a Z move, generally dragonium, if rockium will be stone edge, substitute can be used on switches
Generally nearly all chomp spreads are jolly max speed because of the speed tier being so important, not mentioned here is mixed spread of Naive - 60hp/68atk/124spa/252spe which can be run with fire blast draco eq + rock move but is very rare due to garchomps bad spa