#1. Go to truepeoplesearch.com , cyberbackgroundchecks.com, thatsthem.com
#2. Enter the persons name and city, phone, email, or whatever you have.
#3. You will get a list of all of their infos.
#4. After getting all their infos, use it with this telegram bot or another breach lookup: https://leakosint.com/en
#5. Lookup all the details (all mails, phones, etc)
#6. Gather all the passwords from the lookups or any other info.
Congrat, you have doxed them easy and quick!