There’s no way to find a college which would accept you with no diploma or GED, trust me. You can find the college which has some open classes for everyone, but you can only go there as a listener, but you won’t be a student and can’t enroll. I did that for some time, when I still was at school and wanted to get ready to change my life. I just passed some school assignments to essayshark and went to listen to 3 courses of the college I wanted to enroll to. It helped me a lot!