TWRP
TWRP is one of the most popular recovery ever created in the world for Android Devices. It needs to be installed every time, and the most notable thing is which it’s touchable.
File manager
When a phone is connected while has booted into TWRP, its files could be viewed by a computer.
Backup
You can backup your files too, as long you have access to root user. If no root access has been provided, you’ll be able to recover your “user” files only.