This section of the forum is about photography and the particular attributes of the cameras referred to as Rangefinders.
If your plan is to look for something other than 35mm rangefinder cameras, and you are already content with your 35mm SLRs, I'm not sure what you are going to gain from talking about non-rangefinders in a rangefinder sub-forum.
While most of us enjoy camera equipment related discussions, camera equipment isn't the reason we are here.
This is taken with a medium format rangefinder that is about ten times the size of a Leica M - a Koni-Omega:
View attachment 426106
The nature of the camera has little to do with the qualities of the result. In fact, I no longer have that camera, because although the results from it were really satisfying to me, its ergonomics and size and weight made it particularly unsuitable for my use.