No one can guard LeBron that is known already, what you can do though is clog the space to the basket, and focus on stopping their 2nd and 3rd options letting LeBron get 40pts while you limit the rest to under 10, and I mean really under like 5 to 7pts lol.
LeBron can stop himself. If the lanes get clogged and he isn't able to get to the hoop at will, he'll start jacking up bad jump shots and when that happens, he starts bricking them and doesn't do well.