Zorki 3, 3M, 4 all are Leica Thread Mount; The Zorki 4 is the least expensive.
Kodak Signet 80, "funky Breech-lock" mount, has 50/35/90 focal lengths available. all three and the camera will run ~$100. BIG camera.
Canon P or VI-T, hard to find under $200, but possible for a real user camera. My VI-T was $140.