Pig

Natural spawns for the Pig occur in Plains, Forest, Sunflower Plains, Flower Forest, Birch Forest, and Taiga.

Because it appears across 6 different biome types, it is one of the easier mobs to track down — heading to any of them should turn one up before long.

Spawns on grass blocks with light level 9+, in groups of 4.

The light-level requirement is the key detail: it needs light level 9+ to appear, so adjusting block light is the simplest way to control where it shows up.

Spawns commonly come in batches of 4, which is worth remembering when you are deciding whether to engage or retreat.

Left alone far from any player, wild pigs eventually despawn, so use a name tag if you want a specific one to stick around.

Because it is harmless, the Pig is mostly useful as a renewable source of its drops, and you can let a small population breed up over time.

Killing a Pig produces the following loot:

Every kill yields 1–3 Raw Porkchop (always, 100% chance).

In terms of experience, each kill is worth 1–3 XP orbs.

Raw Porkchop from pigs is renewable, so a small breeding setup keeps you supplied indefinitely.

Since every item here is guaranteed, the only variable is quantity, which makes this mob a dependable, low-variance source of what it carries.

Because the Pig is harmless and breeds, the efficient long-term approach is a small enclosed pen where a breeding pair keeps replacing what you harvest, rather than hunting wild ones down one by one.