Tracker rhymes with:
bracher, bracker, cracker, racker, acker, aker, akre, attacker, backer, bakker, blacker, bracher, bracker, cracker, hacker, lacher, lacquer, macher, makar, packer, racker, sacher, schacher, slacker, stacker, tacker, thacher, thacker, thakkar, vanacker, wacker, whacker, zacher
Tracker sounds like:
tercero, theatergoer, thrasher, thresher, tracer, tracor, traeger, trager, trageser, trauger, treachery, treasure, treasurer, treasury, trecker, tregre, trickery, trickier, trigger, troeger, trouser, trucker