I'm not aware of any 35mm RFs with a built in finder for 24mm or wider lenses. The C/V Bessa hot shoes are located directly above lenses, and the 21mm finder has hash marks in the bright lines for parallax (IIRC... it's on extended loan to a friend, so I can't check it right now). The C/V 15mm finder has no bright-lines or parallax correction marks.
I haven't seen a 25mm C/V finder, but cameraquest.com should have info on it's brightlines and layout. I like the L, but I like the T better. I think you can still find both new, although they're both discontinued.