Author's rhymes with:
authors, authors', arthur's, arthurs, authors, authors', coauthors, crowther's, crowthers, ethers, fathers', mothers', panther's, panthers, panthers', walthers
Author's sounds like:
address, addressee, addresses, adheres, adorees, adores, atari's, ataturk, ataturk's, atrocious, auditor's, auditors, auditors', audric, audris, authorize, authorizes, authors, authors'