Haven't found a great group yet.

So I've been trying to find a group that I can feel the synergy in. Maybe I'm just too hasty in the process. So I look for online players to play with on one shots (I also have a campaign rn but it's new). However, in all of these I struggle to really find the one group I can do with. I want that synergy and roleplay moments where they do it on their own to just interact with the world. I make sure to say that this game is roleplay heavy, etc... but when it comes to it, everyone is silent. I don't know if I'm not giving enough roleplay cues or what, but I really want for them to just roleplay it in on their own like what you'll see in some campaign videos of others in yt. Even my current group is a silent bunch. Any tips?