Be very, very careful arwenant
You can find a lot using Google searches, such as:
Overseas Jobs .... or Overseas Working ... or Jobs in USA ... etc
take some time and play around with various searches as you get into the exercise.
BUT, WHATEVER YOU DO, be extremely cautious approaching any of these people. There are some exceedinly unpleasant websites out there and many of them are well disguised.
Just an old guy who has seen a lot trying to help
Best of British Luck in your search
Old Salt