What rhymes with concocter

ucla, conqueror, procter, buckner, blocker, luxor, lockyer, roca, judoka, kronecker, khalkha, markhor, succor, ocker, coxa, clocker, ocher, mocker, footlocker, jaywalker, stomacher, lacer, concocter, conquerer, autoworker, doorknocker, buckra, frolicker