Preferably something which offers an API, such as Checkr. Unfortunately it seems Checkr is suitable more for running these checks on candidates/employees.
I looked at CIC reports (which it seems Zillow uses), but I will have to contact them to see how their service works in bulk.
Does anyone know any other companies which offer this kind of service?
https://www.consumerfinance.gov/consumer-tools/credit-report...
Besides the big agencies that collect and sell this information you can find many aggregators that resell it to vertical markets or to people who can’t get access to the major agency databases directly. Google search will find all of that.