A. milli
A. hyacinthus
maybe even A. prostata
If it doesn't actually have "lineage" to an ORA coral, then it's not an ORA coral, if that's important to you.
If sold as an ORA Red Planet, the lack of green doesn't rule that out. When Red Planet receives high light, it loses the green. I'm in the process of moving mine down, every few weeks, trying to get the green to return. It's starting to return, but I think I'll need to move it down, one more time.
My ORA Rose Milli is a much deeper red color, and has a thicker branch, much thicker, than my ORA Red Planet.