sherpa – informally refers to people and guides who carry a lot of gear, typically to help people on a quest. Formally, refers to the nomadic Sherpa of Nepal & Tibet, who speak dialect, dress differently the the rest of the culture around them, and guide people up and down Mount Everest despite the risks and reward.
massage therapists – by default, drivers of station wagons and small boxy vehicles filled with massage tables, chairs, stacks of sheets, blankets, towels, liniments, and a grocery aisle worth of snacks and food. They are often seen dressed as if they just walked out of a Southeast Asian New Age shop, sometimes turn the native language into dialect, and spend most of their working hours, trying to help people feel better.
The common line: a little on the fringe, on the move, exploratory, willing to work…And a lot of gear.