Tigar's rhymes with:
aerostar's, aerostars, avatars, boxcars, cojimar's, escobar's, feldspars, gaidar's, handlebars, hectares, jaguar's, jaguars, magyars, melkar's, memoirs, minstar's, mizar's, morningstar's, motorcars, northstar's, radars, railcars, registrars, reservoirs, seminars, seskar's, sidebars, windstar's
Tigar's sounds like:
takers, taxers, tchuruk, teacher's, teachers, teachers', tesoro's, thackery's, thatcher's, thatchers, theocracy, thesaurus, tiger's, tigers, tigers', tigris, tjarks, tokarczyk, tokars, tokarski, tokarz, tucker's, tweezers