Personally? I'd be glued to Bike24, looking at bikes like this:
https://www.bike24.com/p2652020.html and thinking about taking a train to collect it from the continent, maybe with my gear stuffed into panniers that would take seconds to attach to the new bike before riding off homewards.
https://www.bike-discount.de/
https://www.bike-components.de/en/
https://www.hibike.com/