Glycogen rhymes with:
jarnagin, misogyne, plasminogen, baillargeon, bogin, colgin, cottongin, cragin, curmudgeon, dolgin, durgin, edgin, elgin, feagin, gougeon, hagin, hanjin, hodgin, iljin, jarnagin, magin, maginn, misogyne, mongeon, pidgeon, plasminogen, pridgeon, ragin, repligen, rodgin, spurgeon, spurgin, tianjin, turgeon, virgin, yeargin, ynjiun
Glycogen sounds like:
galgano, galligan, gehlhausen, gholson, gilkeson, gilkison, gilligan, gillikin, gillison, gillson, gilson, glacken, glackin, glasheen, glassman, glasson, glaucoma, gleason, gleeson, glickman, glicksman, glisson, glossman, glosson, gluckman, glucksman, glucosamine, gluskin, glycine, golisano, golson, gullickson, gullikson