I quit Facebook months ago, and guess what, no one cared. I keep contact with REAL friends far away via email or Whatsapp. For local friends I use Whatsapp and meet in person. There is no NEED for a true Facebook replacement.
But to be honest, I created a new account, with a fake name and won't add anyone to it. The goal is to track some events and key communities I like to interact with. But I've added no personal data to this account and only log on to it on a less used web browser and don't use it in my mobile. I also use the following add-ons to prevent any Facebook tracking: uBlock Origin, Privacy Badger and uMatrix. Probably overkilling it.