Allstate's rhymes with:
corestates, corestates', interstates, overstates, sunstates, understates, corestates, corestates', facilitates, gravitates, hesitates, imitates, interstates, irritates, necessitates, overstates, permutates, potentates, rotates, sunstates, understates
Allstate's sounds like:
ahlquist's, ahlquists, alcids, allocates