Ralph's rhymes with:
ralphs, ralphs, adolf's, delfs, elf's, gandalf's, golf's, golfs, gulf's, gulfs, ralphs, rohlfs, rolfes, rolfs, seawolf's, self's, selfs, wolf's, wolfe's
Ralph's sounds like:
railbike, ralphs, relapse, relapses, reliefs, relieves, roelofs, rohlfs, rolfes, rolfs, rollback, rollbacks, rulebook