[LightDestory]

Starting from 2018 the enterprise edition is not "LTSB" anymore but it is now called "LTSC".

“Windows 10 Enterprise LTSC is designed for systems that have strict change management policies with only security and critical bug fixes. By using a Long Term Servicing Channel, you can apply regular Windows 10 security updates for specialized devices while holding back new-feature updates for an extended period of time, up to 10 years.”

Here an article about it
If you need the latest 2019 iso, here a magnetic link for torrents client:

magnet:?xt=urn:btih:369E0306EF42BA0A1463E914C8819C3E575EBE8E

They are "vanilla" isos. untouched from MSDN. They comes from one of my most trusted forum.
If you need mirror links from MSDN service of a specific iso:

1. Go here
   
2. Set "Select type" to "TechNet Evaluation Center"
   
3. Set "Select version" to "Windows"
   
4. Select your desired version from the list of "Select edition"
   
5. Select your language on "Select language"
   
6. Select the proper architecture file from "Select file"
   
7. Click "Download" button and save the hash code for later verification.