What tank top can protect the team/adc at 6 items?

For example, malphite can ult the enemy team and slow AS, which is crucial late game. Maokai can give his team more sustain with ult. Hec has has a huge displacement that can scatter an enemy team. The new tahm could eat a tank so the enemy team does not have a good front line. Who do you guys think is the best protector at full build? Remember, you are the tank and not necessarily the damage dealer but I guess you can take dps into consideration if you want.