The 2014-2018 Corolla sedan in non-Safety-Connect configuration is the cleanest default in the directory: no embedded cellular modem, a 1.8L engine that routinely clears 250,000 miles, a CVT that has proven durable, and Consumer Reports recommendations across the generation. 2017 and newer add Toyota Safety Sense as standard, which makes 2017-2018 the sweet spot: modern crash avoidance with zero connectivity. Expect roughly 30 city / 40 highway mpg.
Treat 2019 differently. The Corolla Hatchback launched that year with Safety Connect on equipped trims, and DCM-equipped 2019 vehicles exist in Toyota service-bulletin material. A 2019 car needs a VIN check and a physical SOS-button inspection before it qualifies. When in doubt, stay 2014-2018 sedan.