The Sea Wasp (Ryk E. Spoor)

You should have more choices even in the free sample. Each race has around 6 or 8 different classes with 3 specializations per class. In the free version you probably can't play as a panda or access the death knight and monk classes, but everything else up to level 20 should be there.

IIRC on character creation the races are selected on one side of the screen while the classes are selected on the opposite side. I don't recall if they dim the classes you can't pick or hide them, but the choices should be available.