Standard choice: Evil Outsiders.
Do you just inflict the same damage as you would otherwise heal? Straight up? As if they were undead?
Further, what if you have a Variant Channeling?
Would this allow you to tactical nuke a specific type with the inflict effect debuff of an alternative channeling, without needing to actually channel negative energy?
Yes against the alignment of choice you would do damage as if against undead the save dc exactly the same.
I would have to say yes* with Variant channeling as well as you can decide to only hit the aligned outsider of choice and heal or harm them.
*They way it's written its up for debate given the fact that it says the "normal" effects. I would either ask your DM or if you are the DM I don't think there's a definitive answer.