I'd go with a folder, a Zeiss Super Ikonta III, Agfa Super Isolette, or maybe Iskra.

I put off getting an old folder, suspecting it would be "rickety", but my Super Ikonta III is a killer camera, with fantastic build quality. Only thing is that frame spacing is very tight, but it's easily fixed by applying some thick sticky tape to the start of the backing paper.

Otherwise, can't go wrong with a Rolleiflex.