Consumer reports: Consumer Reports is an independent organization that tests and reviews products, including car insurance. You can find information on direct car insurance companies by reading Consumer Reports' car insurance buying guides and reviews.
State insurance departments: Each state has an insurance department that regulates insurance companies. You can contact your state's insurance department to find information on direct car insurance companies and file complaints if necessary.
Online forums and reviews: There are many online forums and review websites where you can find information on direct car insurance companies. Some popular sites include Reddit's r/Insurance, Consumer Affairs, and Trustpilot.
Direct car insurance companies: You can also contact direct car insurance companies directly for more information. Some well-known direct car insurance companies include Geico, Progressive, and Esurance.