Zombie (zombie, zombie_villager) = any villager trade item: emerald, wheat_seeds, wheat, pumpkin, melon_block, gravel, coal, string, paper, book, written_book, gold_ingot, iron_ingot, diamond, leather, porkchop, chicken, bread, apple, pumpkin_pie, cookie, cake, ??fish??, ??cooked fish??, wool DV 0-15, arrow, bow, flint, compass, bookshelf, clock, glass, name_tag, emptymap, filled_map.monument, filled_map.mansion, ender_pearl, glowstone, experience_bottle, dye DV 4, redstone, cooked_porkchop, cooked_chicken, saddle, magic items, magic books

Husk (husk) = bone blocks (bone_block), sticks (stick), cactus (cactus)
Skeleton (skeleton) = ?? sticks (stick), string (string)
Stray (stray) = packed ice (packed_ice), snowballs (snowball)
Skeleton Horse (skeleton_horse) = ??
Creeper (creeper) = sand (sand)
Spider (spider) = web (web)
Cave Spider (cave_spider) = web (web)
Witch (witch) = ?? glowstone (glowstone)/redstone lamps (redstone_lamp)
Enderman (enderman) = ?Eye of Ender (ender_eye)
Slime Cube (slime)= bone blocks (bone_block)
Sliverfish (silverfish) = gravel (gravel)
Guardian (guardian) = clay balls (clay_ball)
Elder Guardian (elder_guardian) = dragon egg?? (dragon_egg) diamond (diamond_block) / gold block (gold_block)
Evoker (evocation_illager) = single enchantment magic books
Vex (vex) = elytra (elytra) broken, not always, ???feathers (feather)???
Vindicator (vindication_illager) = 
~~ Illusier (illusion_illager) = potions

Blaze (blaze) = magma block (magma)
Wither Skeleton (wither_skeleton) = soul sand (soul_sand)
Wither (wither) = 
Zombie Pigman (zombie_pigman) = glowstone (glowstone), nether quartz (quartz), nether wart (nether_wart)
Ghast (ghast) = up tear percent
Magma Cube (magma_cube) = 

Endermite (endermite) = 
Dragon (ender_dragon) = dragon head (minecraft:skull DV 5), dragon egg (dragon_egg)
Shulker (shulker) = Always drop shells

Iron Golem (villager_golem) = 

Bat (bat) = bone meal (dye DV 15)
Parrots (parrots) = records??, no cat, 13
Ocelot (ocelot) = raw chicken, feathers (feather)
Wolf (wolf) = mutton, wool
Cow (cow) = 
Mooshroom (mooshroom) = 
Pig (pig) = 
Sheep (sheep)= 
Horse (horse, donkey, mule) = NO KILL!!! JUST DON'T!
Llamas (llama) = 
Chicken (chicken) = 
Polar bear (polar_bear) = 
Squid (squid) =
Rabbit (rabbit) =
Villager (villager) = 