Minecraft skyblock farms, which ones are good?

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Hi, I'm playing minecraft Skyblock (1.16.4) and I still need a few farms. What other farms are there that are important and I don't have them yet, do you have any ideas? I have: zombie, skeleton, mobfarm, iron golem, slime, wheat, melon, pumpkin, carrot, potato, sugar cane, cow, horse. (Spawner on)

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Witherskellet, Creeper, Blaze, and Enderman Farm