Rototilles rhymes with:
advil's, anthills, bonnevilles, carville's, catskills, cranesbills, crossbills, daffodils, emuil's, foothills, freshkills, handbills, hawkbill's, hornbills, jacksonville's, landfills, morrisville's, nashville's, sawmills, treadmills, whippoorwills, windmills
Rototilles sounds like:
radials, radiology, rattles, redlich, retails, riddles, rituals, rootless, rothwells, ruthless, ruttles