Remnants rhymes with:
complainants, components, consonants, contaminants, continent's, continents, covenants, determinants, exponents, lieutenants, opponent's, opponents, opponents', pennants, proponents, subcontinents, tenant's, tenants, tenants'
Remnants sounds like:
ramada's, ramtek, rand's, randa's, randazzo, rands, randy's, rantz, reents, reinitz, reints, rematch, remedies, reminds, rentas, rents, rentsch, rentz, reunites, rheumatic, rinds, romantic, romanticize, romantics, roommates, round's, roundhouse, rounds, rwanda's, rwandese