Belonging rhymes with:
longing, prolonging, longing, prolonging, banging, bringing, clanging, clinging, flinging, ganging, hanging, haranguing, longing, mudslinging, overhanging, pinging, prolonging, ringing, singing, slinging, springing, stinging, stringing, swinging, upbringing, winging, wringing
Belonging sounds like:
balanchine's, balancing, belongings, blanking, blinking