Mongoloid rhymes with:
alkaloid, celluloid, nedlloyd, alkaloid, amyloid, celluloid, nedlloyd, unalloyed, ackroyd, adenoid, alkaloid, amyloid, android, asteroid, aykroyd, boothroyd, celluloid, corticosteroid, hemorrhoid, holroyd, nedlloyd, oldroyd, ovoid, paranoid, polaroid, rheumatoid, rhizoid, sinusoid, spheroid, unalloyed, vescinoid
Mongoloid sounds like:
machold, macleod, mangled, mangold, manigault, mccloud, mcglade, mcleod, mcloud, mclouth, micheletti, michelotti, mingled, mislaid, mislead, misled, mongold, monigold, monoclate, muscled, musicality, musselwhite, muzzled