Belgian rhymes with:
allergan, allergen, amerongen, antigen, bijan, bludgeon, burgeon, cajun, carcinogen, collegian, contagion, dajun, detjen, dodgen, dudgeon, dungeon, engine, estrogen, evjen, georgian, gudgeon, halogen, hodgen, hydrogen, imagine, karajan, legion, margin, nadjen, neurosurgeon, nitrogen, norwegian, oncogen, origin, oxygen, pathogen, petitjean, pigeon, pridgen, rathjen, region, religion, smidgen, sturgeon, sundararajan, surgeon, tejan, tietjen, trajan, trojan, trudgen, virgen
Belgian sounds like:
balcom, balcony, balkan, balkcom, balkin, ballgame, balsam, balsamo, balzano, belgacom, belgium, belkacem, belkin, bellissimo, belson, bialkin, bilson, blacken, blackham, blackman, blackmon, blackmun, blackson, blakeman, blakeney, blakenham, blakney, blasini, blazina, bleakney, blechman, blegen, blossom, blowgun, bloxham, bloxom, bloxsom, bohlken, bolcom, bologna, bolson, bulson, bylsma