Newscaster rhymes with:
broadcaster, forecaster, lancaster, sportscaster, stratocaster, waycaster, alabaster, broadcaster, buckmaster, burgmaster, burgomaster, concertmaster, fightmaster, flamemaster, forecaster, goodpaster, hoffmaster, huffmaster, jewelmaster, lancaster, postmaster, puzzlemaster, quartermaster, ringmaster, roadmaster, schoolmaster, scoutmaster, servicemaster, sportscaster, stainmaster, stratocaster, taskmaster, ticketmaster, toastmaster, waycaster, webmaster
Newscaster sounds like:
nastier, nectar, negotiator, nester, nestor, neumeister, nicastro, nichter, nicotera, nicotra, nighter, non-sequitor, nostra