There is auto equip plugin for vanilla? I can't find even paid.

https://wrobot.eu/files/file/1486-paid-humanmasterplugin/

From the features:

• automatically equips better items, based on TBC "Pawn" stat weights

You will get way more than just auto equip if you buy humanmaster plugin.

To be honest I can not even think about not using this plugin anymore. It feels like it is a part of the bot itself. You NEED it, if you ask me.

What Bambo just said, it changed the way I bot a 100%

not only does it auto equip items, it will help you avoid dying due to drowning, helps you avoid bigger packs of mobs, runs away, it also buys food and keeps it up to date so you dont have to change the name yourself, and MUCH more! tons of settings to tweak for your own liking!