Escalate rhymes with:
percolate, accumulate, adulate, annihilate, articulate, assimilate, calculate, circulate, coagulate, congratulate, copulate, correlate, crenelate, depopulate, distillate, emulate, encapsulate, extrapolate, flagellate, formulate, gastrulate, immolate, innoculate, inoculate, insulate, interpolate, isolate, lanceolate, manipulate, miscalculate, mutilate, oscillate, overregulate, percolate, populate, postulate, recalculate, recapitulate, reformulate, regulate, reregulate, speculate, stimulate, stipulate, strangulate, tabulate, tesselate, titillate, undulate, vacillate, ventilate
Escalate sounds like:
egaldey, eickholt, ejaculate, equaled, equality, escalated, esselte, euclid, exalt, exalted, excelled, exclude, excluded, exhaled, exiled, exult, exulted