I’m not him, but I shop at running stores. 
They’re stores specializing in gear for running – primarily footwear (running shoes and socks), but also clothing for running, and related gear (water bottles, reflective belts and lights for nighttime running, etc.) And, everyone I’ve ever seen working at a running store is a runner, and looks like it (very fit, fairly slender and toned).
Face it.
Us good-looking people are EVERYWHERE.
Our chiseled profiles, dimples, perky breasts, and tight butts will NOT be hidden under a bushel!
(Raises fist) FIGHT THE POWER!
They used to be big on buying lunch for the whole doctors’ office, too. Not at fancy restaurants…catered cold sandwiches. Apparently doctors can be bought cheap.
The pharmaceutical industry pays well in general and in addition reps get bonuses and other perks so it’s pretty good money for a young 'un.
They cannot leave samples at pharmacies or hospitals, but they can and do leave discount cards and other items that the pharmacists can give to patients who may need or want them.
We had one rep, a middle-aged man who sent our gaydar into overdrive even though he was married and had several children, whom we really liked. He would bring in desserts his wife had baked, and they were always yummy. We also noticed that after he stopped by, doctors would order lots of the meds he pushed (I mean promoted 
) for several days, and then within a week or so, those med orders would be back to baseline level. We didn’t tell him this, however.
And the pharmacy. Beats cafeteria food any day of the week, although this hospital had a pretty decent cafeteria. The fancy restaurants were, and are, in the evening and used for drug promotion and OCCASIONALLY continuing education.
One of my mementos of that era is a Viagra clock I found at a thrift store. And guess what? I put batteries in it, and it didn’t work. 
Viagra pens continue to sell for ever-increasing money on eBay, too.
My brother pointed out on Facebook, “Did anyone else notice that Viagra was being promoted with PENS and CLOCKS?” :o
One other thing. I did rotations at a clinic on an Indian reservation, whose formulary (the drugs they carry) is dictated by the Federal government. Why this particular drug rep would stop by puzzled all of us, because it was 40 miles from any place where he might have had some influence. 
He promoted drugs of interest to nephrologists, and people on this reservation had a very high incidence of kidney failure, so maybe that was why, FWIW. Anyway, my preceptor hated drug reps so much, he would always roll up his sleeves and do a surgical scrub of his arms after he left. 
While a lot of the examples of pretty people are true there is one caveat and that is when you get away from the large metro urban areas into secondary and tertiary demographic areas (like mine on the Eastern Shore of MD ) the front line sales/service people are often far more average looking than what you see in the big cities and more financially upscale areas.
There are still good looking people around, but they are not nearly as concentrated as what you find in the large metro areas. I suspect a lot of this simply because there are not as many well paying service jobs floating around, and if you’re a knockout with any common sense you don’t want to waste your looks in the sticks where the pay is usually poorer as well.
Coming back to this; LSLGuy might well be flying right now (he’s a commercial pilot).
“Well-heeled” is an idiom meaning “well-off or rich.” I interpreted LSLGuy to be saying that some flight attendants are in the field to meet some rich bachelor passenger, in hopes of marrying well…and, thus, they would “quit when they succeed” (i.e., find a rich guy to marry).
I live in Montreal and the female gene pool happens to be very good, with a blend of European French origins, a large Italian population and who knows what other ethnicities of very attractive, black-haired beauties, so there are a lot of attractive women working everywhere.
Also, Etihad Airways flight attendants - extremely attractive.
I’m perfectly fine with anyone answering my questions, just wanted to directed my questions to what I was curious about. Not familiar with quoting multiple people on this forum however.
Astro
THAT’S THE WORD I WAS LOOKING FOR! “Concentrated”. I don’t know if I edit the title of this forum thread, but essentially…
I want to know where attractive people mostly concentrate/flock/condense out of all places out there.
Also, just so I understand this right, places that offer higher paying jobs have a better chance of having attractive employees over places that offer lower paying jobs? Like comparing a tailor suit store vs Walmart cashiers?
Ukulele Ike
LOL, Fight the power against what exactly? Ugly people? Your own kind? I’m confused!
nearwildheaven
How does one even meet these pharmaceutical sales people? They represent drug companies correct? So their customers are mostly doctor’s offices and related then? Someone who isn’t in the medical, pharmaceutical or similar professions, won’t see these sales people in person then?
kenobi 65
Who’s this “LSL guy”? A good buddy of yours? From his experience, is that his opinions of what some FA are like?
I assume not all FA are “gold diggers” right? Or are most are? If so, if I played the rich guy card, would you say I would get more special attention on flights
velomont
HOLY FREAKEN SMOKES! You weren’t kidding about those Etihad Airways flight attendants! Why not just skip the FA job and go work as a supermodel? Oh wait…they might be trying to find a “well-heeled” bachelor.
Here’s a BIG question. What cities/towns in the world have the most attractive people? I don’t know if it’s a stereotype, but isn’t France and french women all super models?
I posted it in another thread here:
http://boards.straightdope.com/sdmb/showthread.php?p=19898591#post19898591
Aside from that, thanks for the great ideas everyone! Never knew attractive people were condensed in so many places! 
LSLGuy is a longtime poster here on the SDMB, and he’s a professional airline pilot. I don’t know that I could call him a friend of mine, but we’ve interacted in a number of threads. He’s extremely knowledgeable about the airline industry, and I find his posts to be very enlightening. Given his level of experience, I’d give his POV on flight attendants pretty good weight.
I would assume that not all flight attendants are golddiggers (or even a majority of them), but it sounds like there’s still a not-insignificant number of them who may be.
Bingo!
(Howdy from Boston) 
As I think he mentioned in his OP, you might see them if you’re in the waiting room at your doctor’s office when they come to meet with the doctor, but otherwise, you wouldn’t ever see them on a professional basis, since the job of a pharma rep has nothing to do with interacting with laymen.
I think it’s about time the OP explain to us what he’s after. Well, I know what he’s after: cute young women. But what does he think our wisdom will help him actually do?
Choose a career, I’d presume.
So what’s it gonna be, OP, Airline Pilot or Doctor?
There are some stunning Singapore Airlines flight attendants. They hire based on appearance and age.
They aren’t shy about it either: https://www.singaporeair.com/en_UK/us/flying-withus/our-story/singapore-girl/
If he were looking for interaction with attractive people, actor or dancer would make the most logical careers in terms of bang for the buck. You’re surrounded by attractive people but don’t need to have scads of money (or appear to) like most fields.
Heck, given the OP’s apparent young age and immaturity, let’s cut to the chase. What he wants is orgasms; cute women are just a means to that end.
The ultimate job for that is porn actor. Any other occupation is so far back in the sex-per-work-hour race as to not even leave the starting gate.
As to the proverbial pilots and flight attendants, the one thing the old FAs teach the new ones in the first week or two is that all pilots are evil to their very core.
Things were (I’m told) different back in the swinging '60s. But all those pilots and flight attendants who married one another then got divorced in the hangover '70s and '80s. And have kept spreading the hate ever since.
Industry insider joke:
Q: How do pilots and flight attendants have oral sex?
A: They shout “Fu** You!” across the concourse at each other.
With the removal of most gender barriers in most professions, another joke was that it became possible for a flight attendant to get a pilot pregnant.
There is, however, another meme that airlines prefer their male FA’s to be homosexual.