Are you in a data breach? - haveibeenpwned.com

[will]

https://haveibeenpwned.com is a pretty cool website to see if your email has been found in a data breach. They can also search for passwords, but I wouldn't do that, just to be safe.
Their privacy policy clearly states that they don't store any of your information (other than what's already in any breaches haha).
I would also try email addresses of family members, because while I was personally safe, some of my family members were involved in a lot of data breaches. I'm sure they'd appreciate it if you let them know so they could secure their data.