Boun Jannurak the US will recognize your Thai marriage but of course will need documentation. Probably best to get your Thai documents translated into English if you haven’t already. I’m almost positive that when visiting with her existing visa you can apply for her green card but best to check on visajourney.com which has a wealth of info. I brought my wife over on a fiance visa originally. Found that website to be a lot of help.
That’s what I’d recommend. Use a family members address or even a mail service address. Schwab banking and you can withdraw your money from any ATM and have the fees credited back to your account each month.
Check LinkedIn for any possible field matches but it is difficult any way you look at it. Teaching is an option if you have a bachelor’s degree in any field and are a native English speaker. They start hiring again in force come April.
A Bachelors degree is required to legally teach in Thailand irrespective of your experience in SA. People have been hired to teach without but usually from in country. It’s still not legal.