To install Debian testing, we recommend you use the Trixie Alpha 1 release of the installer, after checking its errata. The following images are available for Trixie Alpha 1:
However this is very early, Alpha, and NOT recommended for beginners or non enthusiasts or non Debian developers.
This is false, I know one who installed them and they definitely are available:
https://www.debian.org/devel/debian-installer/
However this is very early, Alpha, and NOT recommended for beginners or non enthusiasts or non Debian developers.
I don’t see live images there.