I’ve always liked the German made Fein tools, as well as some of the other items they have made in Europe.
Generally solidly built, although the tools have sometimes had less special features than other brands.
To round out their options, Fein has some Chinese made tools now.
I haven’t tried those.
Generally, at least in the past, Fein was an “Industrial” tool supplier, and their goal were solidly built tools that would just work and last well.
Metabo has a good reputation, but they had a wider range of tools, and some of the tools seemed to be made for Industrial and Professional users, whereas others seemed to be designed more for the home user, with many models with slightly different features, or slightly less features.
Metabo also changed ownership, and the former Hitachi Power tool division is now part of the same company, although the Hitachi name didn’t get sold.
In the US the former Hitachi tools are being sold as Metabo HPT.
This apparently varies by country.