Range finder options are few and far between. If your want to use film there’s quite a selection to use. I enjoy using my old Leica M4, but film is not for everyone. I have an old digital M8+ and Epson had their RD1/2.
If you want something modern Leica has been the only option until now, with the PIXII. Its an interesting take and a little like a more modern interpretation of the Leica M-D.
I like the M-D its very like film like, has no screen but you can use your phone. The new PIXII is very similar.
No rear screen but you use your phone and an app. At nearly €3000 its half the price of the Leica, it has a cropped DX sensor so has pro’s and cons, but is another option.
