Why the US?
What do you want to study?
Do you have a budget?
How are you exceptional?
Basically you need to be as close to a 1 for Abitur, with 2 specialties that make sense for what you want to study, and some way in which you’re exceptional. Finally, even if you have all that, the higher your budget the better your chances, and that’s still 1-5% ar the most famous colleges.