Leninist rhymes with:
misogynist, stalinist, abortionist, africanist, agonist, anticommunist, balloonist, brownest, collaborationist, colonist, constitutionist, constructionist, earnest, expansionist, extortionist, funnest, greenest, humanist, hygienist, internist, interventionist, misogynist, noncommunist, nutritionist, opportunist, percussionist, peronist, preservationist, protectionist, receptionist, rejectionist, religionist, reservationist, revisionist, revolutionist, satanist, saxophonist, secessionist, segregationist, stalinist, tannest, thinnest, trombonist, zionist
Leninist sounds like:
lamaist, lanai-city, lancet, lancit, lanctot, langguth, langseth, languid, languished, lanzet, launched, leanest, length, lengthy, linguist, linked, linquist, linscott, linseed, lionized, longed, longest, longitude, longshot, longuet, longwood, lunched, lunged, lynched