The not-for-profit organization Project Implicit (https://www.projectimplicit.net/) has been researching subconscious biases for years and has developed several, free online tests. (https://implicit.harvard.edu/implicit/takeatest.html) The tests can help you understand your proclivities and subconscious biases. Knowing your biases may help you begin to overcome them.
IAT's have been under scrutiny for some time.They are commonly skewed towards perspectives gained from specific demographics and can be manipulated quite easily to reflect personal pejoratives that align with an agency's codes of ethics. this suggestion should be given with caveats.