Yost rhymes with:
yoast, boast, coast, coste, diagnosed, droste, engrossed, ghost, grossed, host, ivory-coast, khost, most, ost, post, riposte, roast, toast, toste, voest, woeste, yoast
Yost sounds like:
yacht, yagoda, yasuda, yeast, yest, yoast, yoest, yokado, yoked, yokota, yoshida, yust