Substitutes rhymes with:
constitutes, institutes, prostitutes, constitutes, institutes, prostitutes, constitutes, institutes, prostitutes, constitutes, institutes, institutes', prostitutes
Substitutes sounds like:
scapegoats, spacesuits, speights, spigots, subject's, subjects, subjects', subsides, subsidies, subsidize, subsidizes, suspect's, suspects, suspects', sweepstake, sweepstakes