>>58285706I wouldn't really be in any rush to pick one unless you're 100% sure that you basically aren't going to try for another one ever again. Even at their peak, dog teams aren't that much better than just a standard best-of-what-you've-got team, mostly due to the randomness of the skill triggers. Big upsides, but pretty steep downsides. Aside from their individual power, we'll still be needing better options to fill in each team with appropriate types to really optimize Helper Boost's potential (more on-type Berry and Ingredient specialties). Even though you can make full teams right now, most lack a decent spread of ingredients to make recipes with any consistency.
Raikou: Raichu, Luxray, Pawmot, Ampharos (or 2K ribbon Pikachu/Halloween Pikachu)
Entei: Charizard, Ninetales, Tyhplosion, Arcanine (or 2K ribbon Crocalor)
Suicune: Blastoise, Feraligatr, Vaporeon, Golduck (or Quagsire)