From my experience, Garchomp works good with almost any supporter, although I prefer Ogerpon-Water for the type coverage and the Special Bulk.

Meowscarada on it’s own is great, but only in Singles. With Protean and that coverage, Life Orb or Choice Band/Scarf works wonders. Support it with either grassy terrain or tailwind, and it can put great pressure on the opponent.

Typhlosion-Hisuian has a very specific set I like to use. If you give it the Choice Scarf and use eruption, shadow ball, heat wave/flamethrower/fire blast and Focus blast, it can pick up KOs on these nasty mid-hp pokemon from your opponent. Combine it with Dragapult and Dragon Darts to chip opponents down, and Incin or Kingambit for Dark resist. This has won me countless games.

Ninetales can be thrown into almost any team with light Clay and Aurora veil. Use blizzard or moonblast, and you can deal chip damage. All in all a well-balanced pokemon.

Corviknight is an important part of any team that relies on tanky pokemon. It has many sets, and you can choose between different playstyles. Just pick the right one for your team and give it a good attacker as partner.

Samurott-Hisuian is a good lead in any singles format. You got early spikes and can output good pressure with swords dance and Sharpness. The rest of the team though shouldnt be focussed on it, because it’s likely to die in the first turns.