Planning to Study in Germany as an international student

Hi guys I needed some advice Right now, I’m thinking of studying in Germany and have heard that I can study at a college there instead of a university. Do you think it's a good choice? Are there any recommendations for colleges and universities? How is life as a foreign student? I will start to learn German, and right now I'm in my 11th grade so applying to college is the only way for me to study there rather than move to university. But I just need some advice on which colleges are good and where studying is free? Also, what do I realistically need to expect? Will it be difficult for me to make friends and find a job?