The best thing is to do is to build out your network. Keep reaching out to the people in the USA. Make sure your english is impeccable, as that will help build your perceived level of trust.

I suggest also getting out there more. Blogging works but you have to market your posts, and it's more long term. Teaching for notable learning platforms works, as well as helping to write public courses.

Anyway, the key lesson is to get out there and meet people. Then as you talk about what you do, and if you are good, you'll find work.