As of recent data, the most common job held by Americans among teacher, chef, or janitor is:

• Janitor: This occupation has a higher number of positions compared to teachers and chefs. Janitorial work is prevalent in various settings including schools, offices, and public buildings. It involves maintaining cleanliness and sanitation, which is essential across many industries.
• Teacher: While important and numerous, teaching positions are fewer compared to janitorial roles. Teachers work in educational institutions and are vital to the education system.
• Chef: Though chefs are crucial in the food service industry, their numbers are generally less compared to janitors and teachers.