Most likely these: Warmongering Combatant’s Slicer
There’s a couple models use that look, Wild Combatant versions as well.
That’s got to be Fist of the Deity from way back in Wrath of the Lich King
Regarding the topic of Warglaives and transmog for other classes, one of the major reasons there was a specific achievement added in Legion to allow Demon Hunters to use the Warglaives of Azzinoth as an appearance for their Artifact weapons was how iconic these are to the demon hunter class.
I’ve said it before, transmog started out with extremely strict rules about appearances, and over time that’s relaxed a whole lot compared to what it was at the start.
Personally I do hope there’s some more options opened up, we’ll have to wait and see.