Another's rhymes with:
brother's, brothers, brothers', carruthers, caruthers, crothers, druthers, mother's, mothers, other's, others, others', smothers, southers, strothers, struthers, suthers
Another's sounds like:
amateurish, amateurs, ammeters, amtrack, amtrak, amtrak's, anadarko, anadarko's, anderegg, anders, andoras, andraki, andras, andrea's, andreas, andrej, andreozzi, andres, andreski, andress, andrew's, andrews, andrews', andrezak, andric, andrich, andrick, andries, andros, andrus, andrzej, andrzejewski, animators, antar's, antares, anteaters, anthrax, antidrug