From time to time, you’ll feel lonely. You’ll feel you’re all alone and you have no one or no one understands you.
Have a place where people can volunteer to “be on call”. When someone reaches out because they’re lonely, they’ll write a little about themselves, and those who volunteered and are available (you can “check in” that you’re available) get an alert and can see if they want to help, and make contact if they do. All done anonymously.