eOS does not provide rooted versions, as that is a breach of the device’s security.
If you want to get root, you can always get it with Magisk, just like you can get it with any Custom or Official ROM. But that has nothing to do with eOS as well as the procedures to get root.
However, I will tell you about the process of rooting with Magisk. You have 2 options, or flash from a Custom recovery, such as TWRP, the Magisk ZIP; or with the Magisk App you patch the BOOT of the firmware/ROM you have installed (that BOOT.IMG can be extracted from the device itself or from the original file of the Firmware/ROM, either ZIP, TGZ, etc …), and the ‘magisk_patched.img’ that is generated, you flash it later. However, each device has its own particularities about some steps/details of the process.