Chicken spawners need to be on top of grass and have enough grass that chickens can spawn on it with a light level of 9 or above at any Y level.

Rabbit spawners need to be on top of grass and have enough grass that rabbits can spawn on it with a light level of 9 or above at any Y level.

Turtle spawners need to be between Y level 60-67 as well as on sand, ensure there is enough sand for turtles to spawn on.

Panda spawners need to be on top of grass and have enough grass that a panda can spawn on it with a light level of 9 or above at any Y level.

Polar Bear spawners need to be on top of grass and have enough grass that a polar bear can spawn on it with a light level of 7 or above at any Y level.

Pig spawners need to be on top of grass and have enough grass that a pig can spawn on it with a light level of 9 or above at any Y level.

Squid spawners need 1 or more blocks of water to spawn in, light level of 0 or higher between the Y level of 46-62.

Cow spawners need to be on top of grass and have enough grass that a cow can spawn on it with a light level of 9 or above at any Y level.

Sheep spawners need to be on top of grass and have enough grass that sheep can spawn on it with a light level of 0 or above at any Y level.

Zombie spawners can be placed anywhere but require a light level of 0.

Parrot spawners can be placed anywhere above Y level 0 at a light level of 9.

Pillager spawners can be placed anywhere with any light level.

Pillagers do not drop emeralds on minecraft java unless they are part of an active raid.

Skeleton spawners can be placed anywhere with a light level of 0.

Spider spawners can be placed anywhere with a light level of 0.

Tropical fish spawners need to be placed in a warm, lukewarm, deep lukewarm or lush cave biome.

Magma cube spawners can spawn at any Y level and light level.

Slime spawners need to be placed in slime chunks under Y level 70.

Staff will not help you locate a slime chunk.

Pufferfish spawners can be placed at any Y level with any light level in any ocean biome or lush cave or any large body of water.

Creeper spawners can be placed anywhere as long as the light level is 0.

Squid spawners need to have 1 or more blocks of water to spawn in with a Y level below 30, light level does not matter.

Drowned spawners need to be placed in water under Y level 58, light level does not matter.

Blaze spawners can be placed anywhere with any light level.

Enderman spawners can be placed anywhere with any Y level and light level.

Ghast spawners can be placed anywhere as long as there is enough room for ghasts to spawn.

Iron Golem spawners must be placed on a platform with enough room for an iron golem to spawn at any Y level and light level.

Guardian Spawners can be placed anywhere in water at any Y level with any light level.

Wither skeletons spawners can be placed anywhere with a light level of 0.

Shulker spawners can be placed at any Y level and light level.