The Summons moves are based on combos, so wherever you see a weak link in your team... I'm making this up here, but say one of your main's moves causes Repulse but no one else takes advantage of that. So you'd use a summon that goes from Repulse to High Float, and Hinata goes from there... again, not sure if it's exactly right, but just take a look? I don't think there's a particular summon that "goes well" with any one main. It's just up to your team. Hope this helps~