This happens yearly.
They come from all over the solar system.
They can't post on their home webpage country because the US/CAN border patrol may find it.
Very few post here
Most go to LL, dating apps or that dating website with / called try... st plus others, or more to advertise there.
Also they may use Whatapp or /Tele gram for communication. If they were smart they buy Freedom mobile yearly plan.
Yes good luck finding them. And they move around. I remember a Colombian lady in my city stayed for 3 weeks last year and the guys went wild then she left for another city. They are travelling a across the country so they don't stay long. Others sure stay in the GTA.