Southgate rhymes with:
bathgate, northgate, abrogate, applegate, arrogate, bathgate, bishopsgate, castigate, congregate, corrugate, delegate, desegregate, digate, filegate, floodgate, fumigate, holgate, instigate, interrogate, investigate, irangate, iraqgate, irrigate, koreagate, litigate, mastergate, mitigate, navigate, northgate, obligate, profligate, propagate, relegate, seagate, segregate, stargate, subjugate, tailgate, travelgate, watergate, westgate, wingate
Southgate sounds like:
saddest, sadist, sawdust, scotched, seduced, sketched, southeast, southside, southstate, southwest, staccato, stacked, staged, stake-out, staked, stakeout, stashed, stateside, stateswest, statist, steketee, sticht, stickiest, stitched, stocked, stockett, stoked, stuccoed, swatched, sweatsuit, sweetest, switched