Join a Facebook group about ps4 (or even better, about the game you wanna play), most groups do this pinned posts from time to time, where you put in a comment some
basic info about you, your id (or whatever they need to add u on ps4, I don’t really play consoles, but I play some online computer games where they do this), what type of games you play, the time zone and hour you usually play, so you can find ppl to play with.