Sidetracked rhymes with:
backtracked, contract, noncontract, subcontract, backtracked, contract, noncontract, subcontract, artifact, autofact, backtracked, bushwhacked, carjacked, contact, contract, counteract, enviropact, hijacked, medivaced, noncontract, overact, piggybacked, ransacked, subcontract
Sidetracked sounds like:
satirist, scattergood, scattershot, soderquist, starched, stargate, starkist, starsight, straight, straightaway, streaked, streight, stressed, strict, strikeout, stroked