This is how Amazons are done in my homebrew setting:
First of all, there are no classic fantasy races as playable races, only different kinds of humans. The "Amazon" race lives in city states in the southern jungles of the western continent. Females of that race are tall (like seven foot) and have a muscular, athletic build. Statwise they gain a bonus on strength and agility. They become soldiers, hunters and labourers, with soldiers being the most prestigeous occupation. The traditional role of a woman in that society is that of a protector and womanly vitues are loyalty, strength and honor.
Males in that society are small by our standards and have a slender build, but they also tend to be smart and charismatic. They usually become priests, mages, scholars and artisans. While the actual rulership lies usually with the military caste, the traditional role for males is that of honoured advisors. Manly virtues are wisdom, craftmansship and suavity.
There is trade between the Amazon city states and the kingdoms of the nothern central continent, but the cultural differences (traditonal medieval genderroles) sometimes leads to open violence, especcially when a sailor makes fun of an Amazon male and thereby insults the honor of his female protectors.