https://www.tukui.org/download.php?ui=elvui

Installers: (That can grab from our site)
WowUp.io
Ajour

As well as the above,

The headings at the top Or there are guides on the website that point how and where to find addons
viewtopic.php?f=20&t=33
and more guides if you need more help
viewtopic.php?f=20&t=10792

You don't need to register to look at the forums or download addons.