Overcoats rhymes with:
petticoats, raincoat's, raincoats, redcoats, anecdotes, asymptotes, banknotes, booknotes, euronotes, ferryboats, footnotes, gunboats, houseboats, keynotes, lifeboats, petticoats, raincoat's, raincoats, redcoats, riverboat's, riverboats, sailboats, scapegoats, showboat's, speedboats, steamboats, tugboats
Overcoats sounds like:
overacts, overexcites, overreacts, overshadows, overstates, overstock