How to get SWE job while learning English

I have a friend/extended relative who doesn't speak much English. Mid 30s. Has worked in Venezuela and Ecuador as a SWE, mostly in C#/Angular. He's got a decent 50k job in Miami, but has no growth potential since he mainly speaks Spanish. He's being peer pressured to go back to truck driving as his friends supposedly make 3k/week (I'm assuming pre-tax). Any tips as to which company/location within the US would offer him a better TC, while he learns English? A low Hispanic community around the area would help as he'd have no other choice but learn the language.