Hectares rhymes with:
aerostar's, aerostars, avatars, minstar's, morningstar's, northstar's, windstar's, aerostar's, aerostars, avatars, boxcars, cojimar's, escobar's, feldspars, gaidar's, handlebars, jaguar's, jaguars, magyars, melkar's, memoirs, minstar's, mizar's, morningstar's, motorcars, northstar's, radars, railcars, registrars, reservoirs, seminars, seskar's, sidebars, tigar's, windstar's
Hectares sounds like:
hector's, hightower's, historic, histories, history's, hucksters, hysteric, hysterics