Catch ’Em All Add-on 1.21+

With this solution, you will no longer need Boats and Leads: the mod Catch ’Em All offers a convenient tool for catching mobs, storing them, and releasing them anywhere. You'll literally have your own zoo in the inventory of Minecraft Bedrock.

How does it work?

First, craft the item for capturing mobs

Just use it on any mob, except bosses or players

You can store up to 10 creatures at once

The stronger the creature, the more durability is spent on capturing

To release, simply click on any block

Two modes are available: classic and standard

In standard mode, the menu will be better, but the add-on is poorly compatible with others

In classic mode, the add-on can be combined with other packs