R rhymes with:
adar, afar, ahr, ajar, algar, allar, almanzar, almodovar, amar, andujar, aquilar, ar, are, avelar, azar, azhar, baar, babar, bahre, balakumar, baldemar, baltazar, bar, bargar, barr, bashar, bazaar, bazar, bejar, belvoir, bizarre, bodnar, bogar, bognar, bomar, bondar, boyar, car, carr, carre, ceasar, char, cigar, cisar, claar, clar, cotnoir, cousar, csar, czar, d'ivoire, dakar, dar, dardar, delamar, delebarre, demar, detar, dinar, disbar, dzhokhar, dzokhar, emdr, fahr, far, farquar, farr, farrar, ferrar, flohr, foobar, gaar, gahr, gar, ghafar, giroir, godar, gohr, gombar, gregoire, guitar, guizar, haar, hajjar, hamar, har, hekmatyar, hocevar, hribar, huizar, jabar, jabbar, jaffar, jahr, jamar, jar, jiar, kahr, karr, kjar, klar, kumar, labar, lahr, lamar, lamarr, lar, lebar, lemar, maher, mahr, mar, marr, mcgarr, meagher, melgar, menjivar, minnaar, myanmar, najar, najjar, navar, navarre, nazar, npr, o'barr, obar, obarr, paar, paccar, par, parr, pfarr, phar, pharr, pickar, pintar, preslar, qatar, quarre, r., rajkumar, renoir, revoir, ribar, robar, saar, sagar, saldivar, saldovar, sar, scar, schaar, schar, scharr, shahar, sharar, sharrar, sitar, skaar, sklar, soutar, spahr, spar, sphar, spohr, staar, star, starr, subpar, superstar, tabar, tar, tarr, tesar, thar, tokar, tovar, transtar, tsar, ulaanbaatar, valdemar, victoire, voir, yahr, zachar, zagar, zalar, zaldivar, zarre, zulfikar
R sounds like:
r., ra, rae, rah, rahe, rahway, rai, raia, rao, rara, rare, rarer, rau, rauer, rauh, raw, rawe, ray, raya, raye, re, rea, rear, reay, ree, reeh, reh, reha, rehear, reher, rehire, rehor, reier, reiher, reo, rew, rewey, rewire, rey, reyer, rha, rhea, rhee, rhew, rho, rhorer, rhue, ria, riera, riha, rio, ro, roa, roar, roe, roehi, roehr, roh, rohe, roher, rohr, rohrer, rohwer, roi, rorer, rorie, rorrer, rory, row, rowe, rower, roy, roye, royer, ru, rua, rue, ruh, ruhe, ruhr, ruwe, rye, ryer, ryohei, ryrie