Get multi target AOE damage like Shisui or Mei. Maybe get a few interrupters like Iruka or Guy (although I find they often all target the same ninja and not always the ones you expect). Get a few healers or people that can clear debuffs like hanzo or tsunade. Try a few wild cards like a skill broken Fuu,or suit sai to try and control the enemy, or maybe someone who can revive like Jigokudo. Pick the ninja that you want, then use a combo simulator to put them into the best 4's for combo's

https://en.konohaproxy.com.br/

When you fight watch the battle, see if your ninja have bad synergy, or if someone isn't performing. You get 5 goes a day, use them for trail and error until you have the teams you are happy with. Also don't be upset if you can't beat 6 path naruto, he is the king of ranked atm.

Have fun.