Fleets rhymes with:
fleet's, cleats, completes, deletes, depletes, elites, fleet's, leitz, lietz, obsoletes, pleats
Fleets sounds like:
fallouts, falotico, faulds, faults, feldhaus, feltes, felts, feltus, feltz, field's, fieldhouse, fields, fields', fildes, filets, fillets, flatheads, flats, flattish, fledge, fleet's, fleitas, floats, floods, flouts, fluids, flutes, folds, folts, foltz, foulds, fults, fultz