Hacker's rhymes with:
hackers, accor's, acker's, attackers, backer's, backers, bakker's, bakkers, bracher's, crackers, hackers, packers, rackers, slackers, trackers
Hacker's sounds like:
hackers, hasher's, hashers, hawkers, hickories, highrise, highrises, hijackers, hikers, hokuriku, hooker's, hookers, hoosiers, housewares, housework