They'll rhymes with:
abimael, ail, ale, amell, ancell, assail, avail, avenell, averell, bail, baile, bale, balle, barrell, bartell, bayle, beyl, borrell, braille, cadell, cail, cale, calle, capell, cardell, carrell, cartmell, carvell, correll, crail, curtail, dail, daile, dale, dayle, derail, detail, deverell, dorrell, dralle, email, entail, exhale, fail, faile, flail, frail, gael, gail, gaile, gale, galle, garrell, gayle, gorrell, grail, hail, haile, hale, heyl, impale, inhale, jail, jamail, jarrell, jerrell, kael, kail, kale, kvale, lail, lavell, levell, macphail, mail, maile, maille, male, marcell, mayle, mcgrail, mchale, mcphail, mikael, mikhail, modell, mortell, nadell, nail, naill, nale, orrell, pail, paille, pale, parcell, perrell, podell, portell, pralle, prevail, quail, quale, quayle, quesnell, radell, rael, rafale, rail, raile, rayl, rayle, reil, revell, sail, sale, salle, savell, sayle, scale, schmale, shale, smail, smale, snail, staehle, stale, sumrell, surveil, tail, tale, tirrell, today'll, trail, tramell, travail, unveil, vail, vaile, vale, valle, veil, verrell, wail, wale, weyl, whale, withnail, yale, zale
They'll sounds like:
tail, tal, talal, tale, tall, talley, tallie, tallil, tallo, tallow, tallula, tallulah, tally, tallyho, tattle, taul, tawil, tayloe, teal, teale, teall, teel, teele, teeley, teitel, teitell, tel, tele, tell, tello, telly, tetley, tetlow, tewell, thal, thalia, thall, that'll, theall, theel, theil, theile, theola, thiel, thiele, thill, thoele, thole, tholl, thul, thull, tidal, tiddly, tidwell, til, tile, tiley, till, tilley, tillie, tilly, title, titlow, tittel, tittle, toal, today'll, toddle, toelle, toil, tol, tole, toll, tolle, tolley, tolly, tool, toole, tooley, tootal, tootle, total, totally, towel, towell, towle, tuel, tuell, tula, tuley, tull, tulley, tullia, tullio, tullo, tully, tuthill, tuttle, tuyle, twaddell, twaddle, tweedle, twiddle, twill, twilley, twyla, tylee