The first "good" camera I owned was Konica S2 - I wish now I had kept it. Two concerns - I believe that it used mercury batteries (not necessarily a fatal problem), and it's neither compact nor light.

A few years after I sold the S2, I also decided that I wanted a small rangefinder for casual/street use. After shopping around, I settled on an Olympus 35RC. Still have it and still use it. Small, light weight (it can go in a jacket pocket). It does require a PX625 mercury battery, but they last forever, and I was able to purchase a few in Asia a while back so I don't need to worry about that problem for many years. They are fairly widely available in the used market.