We Leak Info v2 might be a bit more popular than Optery. We know about 1 link to it since March 2021 and only 1 link to Optery. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I opted to pay for optery.com to do all the legwork for me. It’s a yearly subscription but doesn’t seem too steep for what I get. They send you regular reports with before and after screenshots of said sites showing your information being removed. Source: over 1 year ago
Maybe this? But it's something else, like Have I Been Pwned. Alternatively, try: this, this, this (probably the best). Source: over 2 years ago
Have I Been Sold? - Check if your email address was sold without permission
DeHashed - DeHashed is the largest & fastest data breach search engine.
have i been pwned? - Check if your account has been compromised in a data breach
LeakCheck - Data breach search engine, low price starting from $10/mo, one email address for free, unlimited API, 7B+ entries
Hacksy by Decoded - Check if your data has been leaked & get a better password
Snusbase - The industry leading database lookup.