Rangers

Rangers bridge a nearly impossible divide, literally traversing the gulf between civilization and the wild. More so than druids or even clerics of Nature, rangers interact with cities and towns for days before slipping off to the wilds for weeks.
Hunters are advance defense for cities, scouting the wilderness for potential threats and many times bringing those threats down before they ever enter civilized areas. These rangers are superb fighters, and many have surprised pampered urban duelists who thought their rustic opponent was an easy mark.
Beastmasters are more removed than their Hunter brothers and sisters, adopting a beast for companionship and aid in the wilds. These beasts are often unwelcome in larger settlements and cities, so Beastmasters typically keep to rural areas.
Gloom Stalkers are the Underdark’s most common ranger, though many dwarves take this option even on the surface. Adept at moving in the shadows, these rangers ironically stalk most of their prey within cities and fortresses, silently going about their grim work.
Horizon Walkers safeguard their home plane from those who wish to unduly influence it. Working in concert with wizards and paladins provides this group of rangers with access to potent weapons, though they need said weapons in their line of work.
Monster Slayers face unspeakable horrors, and are typically driven either by personal loss or family tradition. The established clans of Monster Slayers have been at it for generations, though most whisper that their struggles have slowly warped them.