Cromwell rhymes with:
actual, aggarwal, agrawal, bilingual, casual, coequal, dingwall, equal, heterosexual, homosexual, individual, monolingual, multilingual, mutual, perceptual, semiannual, sendawal, sensual, sequel, spiritual, textual, tidwell, tranquil, unequal, unusual, usual, visual
Cromwell sounds like:
caramel, carmel, carmela, carmelo, carnal, carneal, carnell, carnley, ceremonial, charnley, chromalloy, ciaramella, cornall, corneal, cornel, cornela, cornelia, cornelio, cornell, cornelle, corniel, cornmeal, cornwall, cornwell, cranial, cranley, crannell, criminal, criminally, cromley, crumley, crumly