To find a zombie villager in Minecraft, you can try the following methods:
- Explore at night: Zombie villagers have a 5% chance to spawn in any biome where regular zombies can spawn. Roam around during the night and look for them among other hostile mobs.
- Search near villages: Zombie villagers can sometimes be found near villages in most biomes.
- Find a zombie village: These villages have zombie villagers instead of regular villagers. Although uncommon, finding a zombie village can provide you with a good source of zombie villagers.
- Let a zombie kill a villager: When a villager is killed by a zombie, there is a chance that the villager will turn into a zombie villager. The chance depends on the game difficulty: 0% on Easy, 50% on Normal, and 100% on Hard.
Remember to be prepared for combat, as zombie villagers are hostile mobs and can attack you. If you plan to cure a zombie villager, you will need to make a Potion of Weakness (more specifically a Splash Potion of Weakness).