How about the Voiglander Bessa R2. Good lenses. M (Leica) fitting.
Advantage of rangefinder: clear viewfinder makes for better contact with subject matter. Light weight.
Disadvantage: long telelenses are out of the question.
Compact rangefinders: Olympus RC/RD etc. and similar cameras made by Canon (Canonet), Ricoh, Minolta etc. Usually need new lightseals - easy to do-; batteries sometimes no longer available.
Regards
Hans