Similar to the data breach search engine called "Have I Been Pwned", which you can learn more about here,
DEHASHED is more granular with it's approach to exploring compromised assets. You are able to search on various types of fields behind just an email address or phone number, They also have monitoring services and an API, but what I especially like compared to "Have I Been Pwned" is their collection of data wells. Instead of listing all of the breaches on one static page, they allow you to search on them and display more analytics.
According to DEHASHED, some benefits of using their service includes:
Helps Prevent Account Compromise
Aids in Identity Fraud Investigations
Affordability
Private Datasets
Integrity
Powerful Integrations
You can learn more by checking out their site.
Link to site: https://dehashed.com/