Outfox rhymes with:
fox, foxx, adcox, ballcocks, bloc's, bloch's, block's, blocks, blocs, box, boxx, brock's, brox, clock's, clocks, cocks, cox, coxe, dock's, docks, flocks, fox, foxx, frocks, iraq's, jacques', jocks, knocks, knox, kroc's, locks, lox, macaques, mocks, ochs, ox, pocks, pox, rock's, rocks, rox, shocks, socks, sox, stock's, stocks, stocks', st_jacques, vocs, vox, woks
Outfox sounds like:
oedipus, outback, outfoxes, outpace, outpaces, outpouch