This add-on makes mobs like skeletons and zombies tame-able and healable using their mob drops, when tamed they'll follow you around where ever you go, you can heal them using their mob drops as well.

This add-on allows you to tame the following mobs:
Skeleton, Zombie, Ghast, Blaze, Cave Spider, Spider, Drowned, Husk, Hoglin, Zoglin, Creeper, Enderman, Endermite, Magma Cube, Piglin, Shulker, Silver Fish, Slime, and the Witch!
These mobs can be tamed using their mob drops, for example you need rotten flesh to tame a zombie same goes for the drowned and the husk, When tamed they will be following you around just like a wolf or a parrot, they will fight for you and they will start avoiding other tamed monsters so they don't attack each other, When they are hurt they can be healed using their mob drops, Ranged Mobs may still be able to attack none ranged mobs so be aware! 
 

Credits:
Dfc4Life - Developer
GGUSZ - Show Case Video Maker

creator: https://twitter.com/AkAMCPE

For mobile users click on the MOBILE specified link, after the download is finished unzip the .zip file and take the Tame Able Mobs folder to:
Internal Storage/games/com.mojang/behavior_packs
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For PC Click the PC specified link and after the download is finished double-click the .MCPACK file.

Enjoy taming those mobs!