The "Beastmen" races are more savage, wild, and, if possible, evil and cruel than either Goblinoids or Reptileans and evoke a true fear from those who find themselves at the ends of their weapons, fangs, tusks, and/or claws. The most commonly found/encountered are: Orcs, Kobolds, and Grorn ([tm] Orean gnoll replacement).
Orcs are not the grey-skinned noble savage that later editions have morphed them into, or "moral" primitive of WoW, but rather the green/grey/black porcine faced originals. Orean Orcs are the direct creations of the coupling of Djarthoon with the bestial god of bloodlust, cruelty, and war, Goran. They live in clan-ruled "kingdoms" of their own design, often clashing with one another and any/all races they find within their desired territory. They are primarily found among and within Orea's mountain ranges as well as the decimated lands of Thole, the barren Aeiri Kros, and have been known to annex abandoned fortresses or ruined strongholds of other races. When organized and brought together under strong leaders (the only kind they will serve), they form terrifying hordes that raid surrounding foothills, fertile valleys, and even assault neighboring castles or other fortifications for wealth, resources, or military significance. Orcs are larger than both goblins and hobgoblins, though not as much so as bugbears, with males topping around 6.5' tall, and both males and females are broad shouldered and/or thickly girth, often heavily muscled and generally stronger than humans of a similar size. They are fierce warriors and delight in conquest, enslavement, and torture of other races. They enjoy little as much as dwarf or elf flesh.
Kobolds are the tainted corruption of gnomes by Djarthoon (or some gnomish aspect or demonic minion thereof), tempted with wealth, cunning, ability and power beyond their dreams only to be brought to the horrifying bitter tirelessly greedy low of becoming blue-scaled, dog-faced, rat-tailed creatures almost worthy of pity if not for their vicious cruelty against anything their seemingly endless swarming numbers can overwhelm. Many a mining operation (of gnomes, dwarves, and even men) have been brought to a grinding -bloody- halt from an infestation of kobolds burrowing their way into mineral or ore rich corridors.
The Grorn are the monstrous creations/servants of a forgotten demon-progeny of elder beast gods. With the loss of their creator deity, they quickly fell into line under the direction of Djarthoon and, it is said, she enhanced their already impressive viciousness and bloodlust. They are canine-like humanoids (vs. D&D gnolls traditional "hyena men" which I've never liked) more akin to wild dogs or coyotes. They resemble and are sometimes mistaken for werewolves, though their visage is noticeably closer to a jackal than a wolf to those familiar with such things. They hunt, incredibly effectively, in packs with a remarkable speed, strength, and senses/tracking ability that strikes fear in any who find themselves in the role of prey. Grorn are tireless and will run down a chosen prey for days, without rest. Thankfully, they are primarily limited to the outskirt borderlands of the Thelitian dessert and its surrounding grasslands, the dark lands of Thole, the Aeiri Kros, and occasionally (for hunting dwarves) raiding in and around in the southern Daegun mountains. Devoted to evil, thoroughly corrupt, maintaining a superstitious shamanic religion to their long dead deity -now a guised aspect of Djarthoon- with blood sacrifices and orgiastic feasts (serving living victims, of course), the Grorn are the truest example of savage, ferocious, and monstrous humanoid that give this category the apt umbrella term of "Beast-men."