Protesting rhymes with:
attesting, attesting, contesting, retesting, testing, arresting, attesting, besting, breasting, contesting, cresting, digesting, divesting, ingesting, investing, kesting, molesting, nesting, reinvesting, requesting, resting, retesting, suggesting, testing, vesting, wresting
Protesting sounds like:
predicating, predicting, predictions, production's, productions, productions', protecting, protections, protestations