You can't create another Nato. Cause Nato is an elitist organization of Europeans who got rich through colonialism and Euro settled white colonies that has an ideology of White-european (AKA western) cultural and ideological supremacy (AKA our culture and thinking is better than everyone and we are destined to dominate).
Nato with with just around 1 billion total population control 50-60% of global GDP, 80% of global wealth. So its pretty much a club of the rich, elite and powerful.
You can't create a rival rich club like this. And the poor rest of the world have too much difference in race, ethnicity, culture and religion to unite like this.
What you can do, have a country like China with more population than the entire nato combined. Make it as rich or even richer than Nato. What that will do is break the superioty complex thinking in Nato countries. While getting rich, China can also take away the dominance in tech, wealth and military power that Nato has, and thus essentially break the faith of the members of Nato in their white supremacist ideology. Eventually some countries will think becoming an ally of China maybe more beneficial for their own country instead of trying to promote dominance of the west.
So you defeat Nato by breaking it up, create rival camps in Europe and Americas. That's it.
