Ive sat down in barber chairs all over the world and it has always been the best spot to get the inside details on where to get drugs or anything else you might want while being in an unfamiliar place. They also usually have good advice on how to stay safe if its a 'not super friendly' area. Depending on where you are the guys on the street might rob you, they might be cops or they might just be too sketchy.

Ask your baber nicely. If they dont have it, they probably know a guy who knows a guy who will be able to sort you out. Barbers are typically cool people, theyll sort you out if you've got a good vibe.