They're rhymes with:
their, there, abair, adair, adaire, addair, aer, affair, air, alair, allaire, almaguer, altair, astaire, auclair, aware, ayre, baer, bahr, bair, bancaire, bare, bear, beaufrere, behr, belair, belaire, bellemare, beware, bezaire, billionaire, blair, blare, boisclair, caire, canadair, care, chair, cher, clair, claire, clare, coderre, comair, compare, concessionaire, convair, corriere, dare, darr, debonair, declare, delair, derr, despair, dispair, disrepair, doctrinaire, dreher, eau-claire, ensnare, ere, err, euromobiliare, eyre, fair, faire, fare, fehr, ferre, finnair, flair, flare, forswear, foursquare, fraire, frere, freyre, frontiere, gair, gare, gehr, geniere, gisclair, glare, glenayre, guerre, hair, haire, hairr, hare, hehr, heir, herr, herre, icelandair, impair, javier, jeanpierre, kahre, kehr, kenmare, khmer, klare, knerr, kreher, lair, lare, larosiere, laterriere, laware, leclaire, lefrere, lehr, lemaire, macnair, mair, maire, mare, maxicare, mcnair, mehr, mer, microware, midair, millionaire, moliere, montclair, multimillionaire, nair, nationair, ne'er, o'hair, o'hare, ohair, ohare, opere, pair, pare, pear, pentair, pershare, phair, pierre, pitiesalpetriere, plair, praxair, prayer, prepare, questionnaire, rare, reher, repair, santerre, sare, sayre, scare, schehr, scherr, sehr, serr, share, sherr, sinclair, skare, snare, solitaire, spare, square, stair, stare, stclair, stehr, sterr, stpierre, st_clair, st_claire, st_pierre, swear, swissair, takecare, tear, their, there, traer, trosclair, unaware, unfair, usair, voltaire, ware, wear, wehr, werre, westair, where, whitehair, zehr
They're sounds like:
taher, taira, tar, tara, taro, tarr, tarry, tatar, tater, tatra, tatro, tatter, tauer, tawdry, tear, teare, teary, teater, teatro, tedder, tedrow, teer, teeter, teodoro, ter, terhaar, teri, terra, terre, terri, terrie, terrier, terrio, terror, terry, teruya, teter, tether, tetra, tetro, thar, thayer, theater, theatre, their, theodor, theodora, theodore, theodorou, theora, theory, thera, there, there're, theurer, thier, thierry, thiery, thiry, thor, thora, thoreau, thoro, three, threw, throw, throwaway, thrower, thru, thruway, thur, thurow, thyra, tiara, tidewater, tier, tire, tirey, titter, todaro, tor, torah, toray, tore, torey, tori, torie, toro, torr, torray, torre, torrey, torry, toru, tory, totaro, totherow, totter, tour, touro, tower, towery, towry, traer, tray, trayer, tre, tree, treu, trew, trey, tri, trie, trier, trieu, trio, troha, troia, trow, trower, troy, troyer, troyu, true, truer, truro, try, tudor, ture, turi, turo, turow, turri, tutor, tutterow, tyer, tyra, tyre, tyree