Exert rhymes with:
dessert, alert, assert, avert, bert, berte, birt, blurt, boisvert, burt, burtt, chert, curt, dessert, dilbert, dirt, disconcert, divert, erte, evert, flirt, gert, girt, herdt, hert, hirt, hurt, hurtt, inert, insert, invert, kirt, kuhrt, kurt, mcgirt, mcguirt, mcwhirt, overt, peart, pert, purt, reassert, revert, schwerdt, shirt, skirt, spurt, squirt, subvert, thibert, unhurt, vanwert, vert, wert, wirt
Exert sounds like:
echard, eckard, eckardt, eckart, eckerd, eckert, eckhard, eckhardt, eckhart, eckrote, eckroth, egert, eggert, egret, eisert, ekkehard, escort, escorted, escrowed, esworthy, euchred, exaggerate, exaggerated, excoriate, excoriated, excrete, exerted, exhort, exhorted