Heirloom rhymes with:
cornblume, daremblum, feldblum, handloom, lindbloom, rosenbloom, rosenblum, backroom, ballroom, barroom, bathroom, bedroom, boardroom, bridegroom, busboom, classroom, cloakroom, cornblume, courtroom, daremblum, darkroom, elbowroom, feldblum, handloom, headroom, legume, lindbloom, livingroom, lunchroom, mailroom, newsroom, playroom, restroom, roseboom, rosenbloom, rosenblum, rosenboom, rozeboom, schoolroom, stockroom, storeroom, sunroom, toolroom, vandenboom, washroom, workroom
Heirloom sounds like:
hairline, harlan, harlem, harleman, harlin