You cannot breed humans in Minecraft because the game does not have human breeding mechanics.
You can breed villagers by giving them enough food and providing enough beds.
You can breed animals like cows, pigs, sheep, chickens, horses, and rabbits by feeding them their specific breeding foods.
You can create more villagers by curing zombie villagers and using beds and food.
You can use commands or mods if you want human-like characters or custom breeding mechanics in a modified game.