Rotenberg rhymes with:
gothenburg, totenberg, altenburg, bettenberg, fuerstenberg, furstenberg, gartenberg, gothenburg, gutenberg, guttenberg, lautenberg, lechtenberg, lichtenberg, rautenberg, rittenberg, rottenberg, ruttenberg, schwichtenberg, spartanburg, stoltenberg, stoutenburg, totenberg, tottenberg, trachtenberg, wartenberg, wattenberg, wattenburg, whittenberg, whittenburg, wittenberg, wittenburg
Rotenberg sounds like:
rautenberg, rittenberg, rittenberg's, rittenberry's, rodenberg, rodenburg, rothenberg, rottenberg, ruthenberg, ruttenberg