Oller rhymes with:
bahler, boller, collar, coller, collor, dahler, dollar, goller, hollar, holler, kahler, kollar, koller, lollar, mahler, moller, nondollar, ollar, pfahler, scholar, scholler, soller, squalor, stahler, stollar, strahler, voller, wahler, woller, zahler, zoller
Oller sounds like:
o'lear, o'leary, oehler, ohler, oiler, olear, oleary, oler, ollar, oyler