Why not have a Facebook account but only use it read-only for the most part? Nothing requires that you post your beliefs, work history, daily plans and such.
That's what I do. I do post a couple of times or so a year, just to keep the account looking used, but those posts are always just something innocuous. Usually just a link to something funny I saw on Reddit, but sometimes a photo or video of mine. The latest, for example, was a link to this video of several Chestnut-backed Chickadees that landed on my hand to eat peanuts out of my palm [1].
I do the same thing on Twitter.
[1] https://www.youtube.com/watch?v=ShPgZhSbxU0 If you watch, I recommend a second viewing going frame by frame as they land and takeoff.