Information for Senior Researchers from the USA
If you are interested in conducting research in Germany, Research in Germany is a great place to start; they have information on how to find a research site, options for furthering your career in Germany, finding funding, and how to prepare for your stay.
In addition to Research in Germany, the German Academic Exchange Service (DAAD) and Make it in Germany also offer many resources for getting your research in Germany started, moving to Germany, learning German, and finding funding.
If you have already been accepted to a project, your host institution can also be a good resource to help you find funding, figure out any visa or other legal requirements, and to find accommodations in Germany—and of course, meeting new people!