Stacked rhymes with:
attacked, counterattacked, intact, tacked, tact, abstract, act, attacked, attract, backed, blacked, bracht, counterattacked, cracked, detract, diffract, distract, enact, exact, extract, fact, hacked, impact, inexact, intact, interact, jacked, kracht, lacked, medfact, overreact, packed, pact, pracht, protract, racked, react, redact, reenact, repacked, retract, sacked, schacht, slacked, smacked, snacked, subtract, tacked, tact, tracht, tracked, tract, transact, unpacked, whacked, wracked
Stacked sounds like:
saddest, sadist, sawdust, scotched, seduced, sketched, southeast, southgate, southside, southstate, southwest, staccato, staged, stake-out, staked, stakeout, stashed, stateside, stateswest, statist, steketee, sticht, stickiest, stitched, stocked, stockett, stoked, stuccoed, swatched, sweatsuit, sweetest, switched