Mechanized rhymes with:
africanized, americanized, balkanized, africanized, agonized, aluminized, americanized, antagonized, balkanized, canonized, carbonized, christianized, colonized, demonized, disorganized, galvanized, harmonized, hellenized, homogenized, humanized, immunized, lionized, nonunionized, organized, patronized, reorganized, revolutionized, scrutinized, synchronized, unionized, unorganized, urbanized
Mechanized sounds like:
machinist, macknight, magnesite, maximized, mcknight, mcnaught, miscommunicate, mismanaged, misogynist