Grosbeak rhymes with:
vanderbeek, asiaweek, chesapeake, doublespeak, fenugreek, goldcreek, healthweek, midweek, moneyweek, newspeak, newsweek, niemiec, richcreek, traweek, vanderbeek, vankleeck, workweek
Grosbeak sounds like:
grachev's, grasps, griesbach, groesbeck, grosbeaks, grzybowski, gyroscopes, gyroscopic