I had a very good experience with Honeypot (https://www.honeypot.io/en/). It’s Europe only, so not sure about the legal aspects of working from the US, but Germany have recently did some changes to laws related to work visas specifically to attract tech workers, so it shouldn’t be that hard. You speak German, so that’s a big plus.
It’s a “reverse” job search, in the sense that you create your profile/CV and companies apply to you. After creating your profile, you do a short call with a recruiter, that helps you adjust it to the type of job you are looking for.
This!! Wendell is the best! He actually started designing his own KVMs because the ones on the market didn’t have all the functionalities/support.