There are plenty of students from USA, who wish to study in Europe. We summed up the most relevant links which should make your research and decision making easier.
Match rates, and USMLE pass/fail Broken down by region
Medical Board of California (MBC) Accredited Schools
Schools that are eligible for FAFSA (Free Application for Federal Student Aid
https://studentaid.ed.gov/sa/prepar…ols/types/international#participating-schools (please check a link “International Schools that Participate in Federal Student Loan Programs” to get precise information)
Schools that are eligible for ECFMG; same list applies for GMC accredited universities
http://www.wdoms.org/ (World Directory of Medical Schools)
Article explaying Key differences between High School Diploma (USA) and Abitur (DE)