[Johnngnky]

Facebook, Wattpad, and Twitter.

It's not enough.

Try PayPal, eBay, Amazon, Netflix, etc and every major email provider.

I thought I'd look for more site using reverse email and then look for numbers.

Here's a few sites for reverse email lookups.

https://thatsthem.com/reverse-email-lookup
https://www.peoplesmart.com/email-lookup-search
https://www.spokeo.com/email-search
http://com.lullar.com/
https://www.beenverified.com/email-search/
https://reverse.addresssearch.com/
https://socialcatfish.com/reverse-email-address-search/

Most of which are likely to be scams. They pretend to have the information but require a payment to be able to see them. Do you have any experience with any of them?