Helmont rhymes with:
belmont, belmont, valmont, ausimont, belmont, bromont, claremont, claymont, clermont, crestmont, enimont, erbamont, fairmont, freemont, inmont, jeumont, larchmont, longmont, newmont, oakmont, piedmont, richemont, rosemont, valmont, whitemont
Helmont sounds like:
haaland, hailand, halimeda, heiland, helland, hellmuth, helmet, helmeted, helminth, helmut, helmuth, hiland, hoiland, holland, howland, hoyland, hulond, hyland