the durst enlargers m66 I think and even the teeny ones for 35mm only will work--they have a 3/8" screw mount that the camera can just go right in. There was a medium format vivitar enlarger where the head comes off to leave a 1/4" screw mouint for cameras to use as well. check craigslist is best.
Polaroid MP4 is the best--can mount a camera or just use the mp4 with roll back or whatever. they are usually cheapest when found locally on craigslist.