I always make it a thing to only use the new Pokemon in initial playthroughs, with priority placed on ones that weren't revealed at all. It's definitely too early for me to completely decide a team, though I usually think about it as I play. Though I'm team Sobble for sure, and Corviknight looks CLEAN, so I might pick it up too. The rest, I'm not sure. Might save one for the legendary, as I typically do.