I am currently testing Thaliz for Classic:
https://www.curseforge.com/wow/addons/thaliz-rez-dem-deadsIt is working a little different than Thaliz 1.12: A REZ button is shown on the screen.
When someone is eligible for a res, the button changes icon to the Resurrection spell icon, and when clicking it, it targets and begins resurrecting, with same priorities as the traditional Thaliz addon.
Button can be moved when shift-left clicking.