Youngquist rhymes with:
ahlquist, blomquist, bloomquist, cronquist, dahlquist, edquist, elmquist, enquist, granquist, hedquist, holmquist, lindquist, lundquist, melquist, newquist, rehnquist, rundquist, runquist, sandquist, seaquist, stenquist, stromquist, sundquist, wahlquist, winquist
Youngquist sounds like:
yamagata, yamashita, yanked, yingst, yongchaiyudh, youngest