I'm thinking buff Neanderthals...
There are these from Magister Militum:

Three sets of hunters, one of women and children. Lots of furs - maybe not what you're after for Hyboria.
Or these from Eureka Minis USA:

Quite ape-like, but not a very good range of poses.
Maybe these from Steve Barber:

Four sets of warriors, one of "civilians". Nice, but a bit "Raquel Welch"

Copplestone's cavemen and women are very nice, but more Cimmerian than Neanderthal. None of the above are particularly "apeman" in appearance, but might just work for you.