I don’t know what used revolvers can be found in Germany, but in Belgium more than half of all used revolvers are S&W 686, 19, 586, 10, 617, 17 or Ruger GP100.
The others are either very cheap Arminus, Taurus, Rossi or more expensive Colt and Manhurin.
Keep in mind that a lot of those S&W 10’s are former police revolvers.
I just got a S&W 19 (2,5”) and a Colt Python (blue 6”) in near mint condition and couldn’t be happier.