There’s The MCU, of course, where he plays Thanos, and then the Fox/Marvel universe, where he starred opposite Ryan Reynolds in Deadpool 2.
Next up, he’ll play Gurney Halleck in Dune, which gives him even more co-stars to communicate with on the interwebs.
It’s in general delightful that he’s back and sharing lovely looks at his home life such as this one.
Josh Brolin is one of the many Marvel stars who has used social media as a tool to keep loosely connected with his MCU co-stars as well as the fanbase, but Brolin is special in that he really has his hands in a lot of high-profile pots.