What rhymes with rohstoff?

Rohstoff rhymes with:

christoff, christoph, kostoff, kristoff, kristoffe, krzysztof, christoff, christoph, flintoff, hentoff, kostoff, kristoff, kristoffe, krzysztof, writeoff

Rohstoff sounds like:

ragtop, reactive, rectify, restive, restivo, rostov

What rhymes with rohstoff?