Hey there, I totally get the challenge of trying to reconnect with someone after a long time. A while back I was in a similar spot, and besides using those search tools, I also ran into a bunch of unwanted calls while waiting for the right number. That’s when I started using Call Control
https://www.pissedconsumer.com/company/call-control/customer-service.html to block spam and telemarketers automatically, which made it much less stressful to pick up every call hoping it was my friend. Hope you find who you’re looking for, and if unwanted calls get in the way, give that a try.