Naysayers rhymes with:
doomsayers, sayers, soothsayers, ayars, ballplayers, bayer's, bayers, beyers, breyer's, doomsayers, layers, maiers, mayer's, mayers, mayor's, mayors, payer's, payers, payers', player's, players, players', purveyors, sayers, soothsayers, sprayers, surveyor's, surveyors, thayer's, thayers, weyers, zayre's
Naysayers sounds like:
nagorski, nazer's, necrosis, negroes, negros, neikirk, new-jersey, new-jersey's, newkirk, newswires, niagara's, nicaragua, nicaragua's, nigeria's, nigger's, niggers, nigris, nongreek, nosair's, nucor's