Heinlen rhymes with:
adrenaline, lanolin, adrenaline, anglen, cahalan, catalan, coplen, eblen, edelen, enslen, evelyn, gillilan, hamblen, insulin, javelin, lanolin, madlen, magdalen, marilyn, marilynn, masculine, maslen, medlen, michelin, micheline, monhollen, porcelain, rosellen, sabalan, schnoebelen, spracklen, stricklen, verkuilen, westphalen, zebulon
Heinlen sounds like:
hainline, hamelin, hamlin, haneline, hanlin, hanlon, heinlein, hemline, henline, himalayan, hineline, humulin