Piles
Plies
Some genuine, honest very blunt advice. Ultimately this is about happiness and being Happy rather than having a relationship for the sake of it.
You've talked about your appearance, teeth etc that you're not happy with it.
Talking about being a passport bro and finding a wife abroad.
Honestly, if you're seriously considering these changes to your life and spending money. Save your money, use it to fix your teeth and get a plastic surgery consultation. It will be expensive teeth plus work.
The amount of money you will spend going abroad looking for love, flights hotels, dates finding the right one, sending them money which you WILL have to do once you're back state side, visas etc etc will be the equivalent as to spending this money on yourself.
Having your teeth fixed and possibly your face will boost your self-esteem and self-confidence. This alone will be massive boost to you and give you confidence to date girls state side.
Also hitting the gym massively helps.
You should run the numbers in chatgpt but going abroad, they will spot you a mile away as an easy mark. If you're dead set on being a passport bro don't waste your time with central and south America. You ain't chad or rich enough for them. Go south east Asia.