Fiser rhymes with:
fizer, pfizer, adviser, advisor, biser, dekeyser, divisor, fizer, geyser, heizer, hiser, hizer, hyser, incisor, iser, kaiser, keizer, keyser, kiser, kisor, kizer, kyzer, miser, mizer, pfizer, pizer, riser, rizer, rizor, schweizer, sizer, speiser, visor, wiser, wisor, wyser
Fiser sounds like:
facer, fager, faker, faucher, fauser, faxer, fecher, feeser, feezor, feger, feiger, feser, ficarra, fichera, ficker, fiebiger, fieger, fieser, figaro, figaroa, figueira, figueroa, figura, figure, fischer, fisher, fishery, fissure, fixer, fizer, fokker, foucher, fougere, fucker, fugere, fujikura, fujiwara, fusaro, fuzzier