Warrant rhymes with:
abhorrent, durrant, laurent, morant, st_laurent, torrent, aberrant, abhorrent, adherent, apparent, arant, aren't, arent, arrant, berent, bondurant, burandt, celebrant, coherent, courant, declarant, deterrent, durant, durrant, emerant, emigrant, entrant, errant, farrant, ferrant, flagrant, fragrant, garant, garrabrant, grandparent, guerrant, hildebrandt, hildebrant, hilderbrandt, homefront, hydrant, immigrant, incoherent, indifferent, inherent, laurent, migrant, milbrandt, morant, parent, parrent, quadrant, recalcitrant, registrant, sarant, seafront, st_laurent, tarrant, torrent, transparent, tyrant, vagrant, vibrant
Warrant sounds like:
warmed, warmond, warmoth, warmth, warmuth, warned, warranted, warranty, weren't, wermuth, wernet, wernette, wernimont, wormuth, wormwood