Manipulate rhymes with:
stipulate, copulate, depopulate, populate, stipulate, accumulate, articulate, calculate, circulate, coagulate, copulate, depopulate, emulate, formulate, innoculate, inoculate, miscalculate, overregulate, populate, recalculate, reformulate, regulate, reregulate, speculate, stimulate, stipulate, strangulate, tabulate
Manipulate sounds like:
manifold, manipulated, maplewood, mayfield, minefield, minnifield, mobility, mofield, muffled, muffoletto, mumbled