Minecraft wiki entry for Giant, associated text: A giant next to a normal size zombie.
A giant "riding" a minecart.
A giant in a cave.
Two giants summoned wearing equipment.
A giant burning in a pool of lava.
A giant getting damaged by a splash potion of harming.
A giant in the middle of a plains biome.
A giant spawner.
In 18w50a, a giant using the zombie AI.
A giant that spawned with a chainmail helmet and an iron shovel spawned in 18w50a.
A giant mob being seen from a player.