Barbarian

Available without change, as listed in the Player's Handbook

Availability

Barbarians are particularly prominent in some of the Half-Orcs in the Shattered Isles and the area around Maxaen
With the recent invasions on the southwest coast of the Human lands, there are a larger number of Half-Orcs than ever before, which means that there are increasing numbers of barbarians in the Southlands.
Some dwarven tribes also seem to have a tendency towards barbarism.