When considering a sword for fictional scenarios involving zombies, it's important to note that zombies are not real, and such scenarios are typically found in works of fiction. However, in fictional contexts like movies, TV shows, or video games, certain types of swords are often depicted as effective against zombies due to their durability, cutting ability, and ease of use. Here are a few examples:

1. Katana: The katana is often portrayed as a popular choice for dispatching zombies in fictional media. It has a sharp, curved blade that can make quick work of cutting through zombie flesh. Additionally, its lightweight and maneuverable nature allow for swift and precise strikes.
2. Machete: A machete is a versatile and robust blade that is often associated with survival and close-quarters combat. It has a broad, straight blade that can deliver powerful chops and cuts. Its durability and cutting ability make it suitable for combating zombie hordes.
3. Falchion: The falchion is a type of medieval sword with a single-edged, curved blade. Its design allows for effective slashing attacks and can be useful against zombies due to its ability to sever limbs and incapacitate targets.
4. Cleaver: A cleaver, known for its heavy and wide blade, can be an effective weapon against zombies. It has the chopping power to sever limbs and deliver powerful strikes.

It's important to remember that the effectiveness of any weapon, including swords, against zombies is purely speculative and based on fictional scenarios. In reality, engaging in combat with any type of weapon, including bladed weapons, carries inherent risks, and safety precautions should always be considered.