I'd like to suggest ItemTag plugin https://www.spigotmc.org/resources/itemtag-1-8-x-1-19-x.89634/ https://github.com/emanondev/ItemTag
We got already ItemEdit (https://www.spigotmc.org/resources/itemedit-1-8-x-1-19-x.40993/ ) from the same author to customize items
ItemTag allows to futher customize items, with potion effects on armor and to execute actions when right clicking
The plugin also has over 22k download and 4.8/5 stars