Plotting rhymes with:
allotting, blotting, clotting, slotting, allotting, blotting, botting, clotting, dotting, otting, rotting, slotting, spotting, squatting, trotting, yachting
Plotting sounds like:
paulding, pelting, piloting, plaiting, plateauing, plating, platinum's, platonic, platoons, plaything, playthings, pleading, pleadings, plodding, plotnick, plutonic, politeness, polluting, populating, populations