Works with either of them as they both have hard hitting mysteries, but dont use both at once.kakashi + fidget spinner is safer choice due to aoe interrupt, 3rd ninja can be edo itachi, killer bee or madara 5k. Keep in mind you need to have multihit chase or summon to pop dodges so naruto can reset. In case of sasuke you can never go wrong by using him with anbu itachi.

Okay! I can do Madara 5k since i have him, but i'm looking to get edo itachi and killer bee down the line. What would be my skill set for mr.fidget spinner though?

You c*so try using something like Shark Kisame if you can combo high enough, unmissable interrupt+chakra drain is pretty mean (Along with SOSP as pos 1 of course)