Plenty rhymes with:
aplenty, aplenty, valente, valenti, aplenty, badalamenti, benavente, chimenti, cognoscenti, corrente, correnti, girgenti, innocenti, lucente, parente, parenti, piacente, pizzimenti, senty, sorrenti, twenty, valente, valenti, venti, vicente, vincente, vincenti
Plenty sounds like:
pallante, palmetto, palometa, palomita, pelland, philantha, piland, pilant, planed, planet, planned, plant, plante, planted, playmate, plenet, pliant, plinth, plummet, plummeted, plymouth, poland, polland, pollinate, pollinated, polyamide, pyland, pylant