Here is a list I have constructed focusing on getting huge knockouts with Pyroar BREAK (the underlying Pyroar also has two excellent attacks), whilst it's recoil powers up Drampa-GX's Berserk. It is built for after the rotation (BKT-on if you haven't heard).
Pokémon: 15
3x Drampa-GX
3x Pyroar BREAK
3x Pyroar (STS)
3x Litleo
2x Tapu Lele-GX
1x Oranguru
Trainers: 32
4x Professor Sycamore
4x N
2x Pokémon Center Lady
3x Guzma
1x Brigette
4x Ultra Ball
4x Choice Band
3x Float Stone
2x Field Blower
2x Super Rod
1x Special Charge
3x Po Town
Energy: 13
9x Fire Energy
4x Double Colourless Energy
Pokémon: 15
3x Drampa-GX
3x Pyroar BREAK
3x Pyroar (STS)
3x Litleo
2x Tapu Lele-GX
1x Oranguru
Trainers: 32
4x Professor Sycamore
4x N
2x Pokémon Center Lady
3x Guzma
1x Brigette
4x Ultra Ball
4x Choice Band
3x Float Stone
2x Field Blower
2x Super Rod
1x Special Charge
3x Po Town
Energy: 13
9x Fire Energy
4x Double Colourless Energy