Aggregate rhymes with:
farragut, farragut, mcelligott, superdelegate, surrogate, vonnegut, agate, altergott, argot, baggott, benguet, bigot, breguet, cliggott, ergot, faggot, farragut, frigate, gigot, hergott, hoggatt, ingot, kogut, legate, maggot, mcelligott, piggott, pigott, spigot, superdelegate, surrogate, target, traugott, turgut, vonnegut, zagat
Aggregate sounds like:
accessorized, aggregated, agresta, agresti, aquarist, ashurst