What are the main ways to turn my North Belleville home into an income property?

According to George Wang's expert advice, there are several options: (1) Rental suite in a basement with its own entrance, (2) Accessory dwelling units (ADUs) to create a triplex or fourplex under Belleville's 2025 rules, (3) Renting spare bedrooms - a simple option for homes with good parking, and (4) Airbnb rentals, which require a Belleville license but can be profitable for homes in good locations near the 401.