Settlements similar to or like Metro Detroit

Largest and most-populous city in the U.S. state of Michigan, the largest U.S. city on the United States–Canada border, and the seat of Wayne County. The municipality of Detroit had a 2019 estimated population of 670,031, making it the 24th-most populous city in the United States. Wikipedia

More commonly known, is the metropolitan area surrounding the city of Cleveland in Northeast Ohio, United States. According to 2018 United States Census estimates, the five-county Cleveland–Elyria Metropolitan Statistical Area (MSA) consists of Cuyahoga County, Geauga County, Lake County, Lorain County, and Medina County, and has a population of 2,057,009 making Greater Cleveland the 33rd most populous metropolitan area in the United States, the third largest metro area in Ohio, and the second largest metro area, behind Columbus, entirely in Ohio. Wikipedia

U.S. urban area encompassing the U.S. Census Bureau's Metropolitan Statistical Area or its somewhat larger Combined Statistical Area (CSA). Estimated 2019 population of 9.83 million people. Wikipedia

Major metropolitan area in the southern part of the U.S. state of Nevada. Coextensive since 2003 with Clark County, Nevada. Wikipedia

Metropolitan region of New England encompassing the municipality of Boston, the capital of the U.S. state of Massachusetts and the most populous city in New England, as well as its surrounding areas. The region forms the northern arc of the US northeast megalopolis and as such, Greater Boston can be described either as a metropolitan statistical area (MSA), or as a broader combined statistical area (CSA). Wikipedia

Bi-state metropolitan area that completely surrounds and includes the independent city of St. Louis, the principal city. It includes parts of both Missouri and Illinois. Wikipedia