Fluor's rhymes with:
lewers, luers, brewer's, brewers, brewers', chewers, dewar's, doers, ewers, heuer's, lewers, luers, mooers, pursuers, reviewer's, reviewers, sewers, skewers, viewer's, viewers, viewers', wrongdoers
Fluor's sounds like:
failures, feelers, fellers, felrice, filers, fillers, flares, fliers, floors, florek, flores, florescue, florez, florio's, floris, flourish, flourishes, flours, flowers, flowers', fluoresce, flurries, flyers, followers, fowler's, fuller's